Nissan Pathfinder: Lan System - Dtc/circuit Diagnosis

• Malfunction Area Chart
• Main Line Between Hvac and a-Bag Circuit
• Main Line Between M&a and Pwbd Circuit
• Main Line Between Sonar and Avm Circuit
• Main Line Between Tcm and E-Shift Circuit
• Main Line Between Wl Chg and Av Circuit
• Main Line Between Av and a-Amp. Circuit
• Hfm Branch Line Circuit
• A-Bag Branch Line Circuit
• M&a Branch Line Circuit
• Adp Branch Line Circuit
• Avm Branch Line Circuit (its Can Communication 1 Circuit)
• Lane Branch Line Circuit
• E-Hud Branch Line Circuit
• Strg Branch Line Circuit
• Abs Branch Line Circuit
• E-Shift Branch Line Circuit
• Av Branch Line Circuit
• Wl Chg Branch Line Circuit
• Dlc Branch Line Circuit
• Vehicle Can Communication 2 Circuit
• Vehicle Can Communication 3 Circuit
• Its Can Communication 3 Circuit
• Its Can Communication 4 Circuit
• Its Can Communication 5 Circuit
• Chassis Can Communication 2 Circuit
• Drivetrain Can Communication 1 Circuit
• Diagnostic Can Communication Circuit

Malfunction Area Chart Nissan Pathfinder Fifth generation

Vehicle CAN Communication Circuit

MAIN LINE

Malfunction area	Reference
Main line between A/C auto amp. and air bag diagnosis sensor unit circuit	Diagnosis Procedure
Main line between combination meter and automatic back door control unit circuit	Diagnosis Procedure

BRANCH LINE

Malfunction area	Reference
Intelligent key unit branch line circuit	Diagnosis Procedure
A/C auto amp. branch line circuit	Diagnosis Procedure
Air bag diagnosis sensor unit branch line circuit	Diagnosis Procedure
IPDM E/R branch line circuit	Diagnosis Procedure
Combination meter branch line circuit	Diagnosis Procedure
Automatic drive positioner control unit branch line circuit	Diagnosis Procedure
Automatic back door control unit branch line circuit	Diagnosis Procedure
Driver seat control unit branch line circuit	Diagnosis Procedure

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
Nissan Pathfinder Vehicle CAN communication 1 circuit	Diagnosis Procedure
Vehicle CAN communication 2 circuit	Diagnosis Procedure
Nissan Pathfinder Vehicle CAN communication 3 circuit	Diagnosis Procedure

ITS CAN Communication Circuit

MAIN LINE

Malfunction area	Reference
Main line between sonar control unit and around view monitor control unit circuit	Diagnosis Procedure

BRANCH LINE

Malfunction area	Reference
Around view monitor control unit branch line circuit (ITS CAN communication 1 circuit)	Diagnosis Procedure
ADAS control unit 2 branch line circuit (ITS CAN communication 1 circuit)	Diagnosis Procedure
Front camera unit branch line circuit	Diagnosis Procedure
Distance sensor branch line circuit	Diagnosis Procedure
Side radar LH branch line circuit	Diagnosis Procedure
Side radar RH branch line circuit	Diagnosis Procedure
Around view monitor control unit branch line circuit (ITS CAN communication 4 circuit)	Diagnosis Procedure
Sonar control unit branch line circuit	Diagnosis Procedure
ADAS control unit 2 branch line circuit (ITS CAN communication 4 circuit)	Diagnosis Procedure

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
ITS CAN communication 1 circuit	Diagnosis Procedure
ITS CAN communication 2 circuit	Diagnosis Procedure
ITS CAN communication 3 circuit	Diagnosis Procedure
ITS CAN communication 4 circuit	Diagnosis Procedure
ITS CAN communication 5 circuit	Diagnosis Procedure

Chassis Communication Circuit

BRANCH LINE

Malfunction area	Reference
4WD control unit branch line circuit	Diagnosis Procedure
EPS control unit branch line circuit	Diagnosis Procedure
Head up display unit branch line circuit	Diagnosis Procedure
Steering angle sensor branch line circuit	Diagnosis Procedure
ABS actuator and electric unit (control unit) branch line circuit	Diagnosis Procedure

SHORT CIRCUIT

Malfunction area	Reference
Chassis CAN communication 1 circuit	Diagnosis Procedure
Chassis CAN communication 2 circuit	Diagnosis Procedure
Chassis CAN communication 3 circuit	Diagnosis Procedure
Chassis CAN communication 4 circuit	Diagnosis Procedure

Drivetrain CAN Communication Circuit

MAIN LINE

Malfunction area	Reference
Main line between TCM and electric shift control module circuit	Diagnosis Procedure

BRANCH LINE

Malfunction area	Reference
TCM branch line circuit (Drivetrain CAN communication 1 circuit)	Diagnosis Procedure
Electric shift control module branch line circuit	Diagnosis Procedure
Chassis control module branch line circuit	Diagnosis Procedure
TCM branch line circuit (Drivetrain CAN communication 2 circuit)	Diagnosis Procedure
ECM branch line circuit	Diagnosis Procedure

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
Drivetrain CAN communication 1 circuit	Diagnosis Procedure
Drivetrain CAN communication 2 circuit	Diagnosis Procedure

IT CAN Communication Circuit

MAIN LINE

Malfunction area	Reference
Main line between wireless charger unit and AV control unit circuit	Diagnosis Procedure
Main line between AV control unit and BOSE speaker amp. circuit	Diagnosis Procedure

BRANCH LINE

Malfunction area	Reference
AV control unit branch line circuit	Diagnosis Procedure
TCU branch line circuit	Diagnosis Procedure
Wireless charger unit branch line circuit	Diagnosis Procedure
BOSE speaker amp. branch line circuit	Diagnosis Procedure

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
IT CAN communication circuit	Diagnosis Procedure

Engine CAN Communication Circuit

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
Engine CAN communication circuit	Diagnosis Procedure

Diagnostic CAN Communication Circuit

BRANCH LINE

Malfunction area	Reference
Data link connector branch line circuit	Diagnosis Procedure

SHORT CIRCUIT OR OPEN CIRCUIT

Malfunction area	Reference
Diagnostic CAN communication circuit	Diagnosis Procedure

Main Line Between Hvac and a-Bag Circuit Nissan Pathfinder R53

Diagnosis Procedure

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect the following harness connectors.

   • A/C auto amp.

   • Harness connectors M31 and E152

4. Check the continuity between the A/C auto amp. harness connector and the harness connector.

   A/C auto amp. harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   M60	50	M31	47G	Existed
   	70		46G	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the A/C auto amp. and the air bag diagnosis sensor unit.

NO>>

Repair the main line between the A/C auto amp. and the air bag diagnosis sensor unit harness connector.

Main Line Between M&a and Pwbd Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).

   • Harness connector M40

   • Harness connector B69

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the following harness connectors.

   • Combination meter

   • Harness connectors M40 and B69

2. Check the continuity between the combination meter harness connector and the harness connector.

   • With full TFT meter

     Combination meter harness connector		Harness connector		Continuity
     Connector No.	Terminal No.	Connector No.	Terminal No.
     M44	18	M40	50A	Existed
     	19		49A	Existed

   • With 7 inch information display meter

     Combination meter harness connector		Harness connector		Continuity
     Connector No.	Terminal No.	Connector No.	Terminal No.
     M24	18	M40	50A	Existed
     	19		49A	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the main line between the combination meter and the harness connector M40.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of automatic back door control unit.

2. Check the continuity between the harness connector and the automatic back door control unit harness connector.

Harness connector		Automatic back door control unit harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
B69	50A	B55	32	Existed
	49A		16	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the combination meter and the automatic back door control unit.

NO>>

Repair the main line between the harness connector B69 and the automatic back door control unit.

Main Line Between Sonar and Avm Circuit Nissan Pathfinder R53

Diagnosis Procedure

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect the following harness connectors.

   • Sonar control unit

   • Around view monitor control unit

   • 8CH CAN gateway

4. Check the continuity between the sonar control unit harness connector and the around view monitor control unit harness connector.

   Sonar control unit harness connector		Around view monitor control unit harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   M70	5	M96	6	Existed
   	6		23	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the sonar control unit and the around view monitor control unit.

NO>>

Repair the main line between the sonar control unit and the around view monitor control unit.

Main Line Between Tcm and E-Shift Circuit Nissan Pathfinder

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).

   • Harness connector F32

   • Harness connector E2

   • Harness connector E152

   • Harness connector M31

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the following harness connectors.

   • TCM

   • Harness connectors F32 and E2

2. Check the continuity between the TCM harness connector and the harness connector.

   TCM harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   F15	34	F32	20	Existed
   	47		21	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the main line between the TCM and the harness connector F32.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the following harness connectors E152 and M31.

2. Check the continuity between the harness connector terminals.

   Harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   E2	20	E152	23G	Existed
   	21		22G	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair the main line between the harness connector E2 and E152.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector terminals.

Harness connector			Continuity
Connector No.	Terminal No.	Terminal No.
M31	23G	84G	Existed
	22G	83G	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the TCM and the electric shift control module.

NO>>

Repair the main line between the harness connector M31 terminals.

Main Line Between Wl Chg and Av Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect the following harness connectors.

   • Wireless charger unit

   • AV control unit

   • 8CH CAN gateway

4. Check the continuity between the wireless charger unit harness connector and the AV control unit harness connector.

   Wireless charger unit harness connector		AV control unit harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   M63	1	M160	21	Existed
   	2		41	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the wireless charger unit and the AV control unit.

NO>>

Repair the main line between the wireless charger unit and the AV control unit.

Main Line Between Av and a-Amp. Circuit Nissan Pathfinder 2022

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).

   • Harness connector M84

   • Harness connector B101

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the following harness connectors.

   • AV control unit

   • Harness connectors M84 and B101

2. Check the continuity between the AV control unit harness connector and the harness connector.

   AV control unit harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   M160	21	M84	50M	Existed
   	41		49M	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the main line between the AV control unit and the harness connector M84.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of BOSE speaker amp..

2. Check the continuity between the harness connector and the BOSE speaker amp. harness connector.

   Harness connector		BOSE speaker amp. harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   B101	50M	B129	10	Existed
   	49M		11	Existed

Is the inspection result normal?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the main line between the AV control unit and the BOSE speaker amp.

NO>>

Repair the main line between the harness connector B101 and the BOSE speaker amp.

Hfm Branch Line Circuit Nissan Pathfinder SUV

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of Intelligent Key unit.

2. Check the resistance between the Intelligent Key unit harness connector terminals.

   Intelligent Key unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M38	6	7	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the Intelligent Key unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the Intelligent Key unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the Intelligent Key unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the Intelligent Key unit branch line.

NO>>

Repair the power supply and the ground circuit.

A-Bag Branch Line Circuit Nissan Pathfinder 2022

Diagnosis Procedure

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the air bag diagnosis sensor unit for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace the main harness.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Check the air bag diagnosis sensor unit. Refer to Work Flow.

Is the inspection result normal?

YES>>

Replace the main harness.

NO>>

Replace parts whose air bag system has a malfunction.

M&a Branch Line Circuit Nissan Pathfinder Fifth generation

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Combination meter

   • BCM

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of BCM.

2. Check the continuity between the BCM harness connector terminals.

BCM harness connector				Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M80	118	B59	87	Existed
	117		86	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (Nissan Pathfinder vehicle CAN communication 2 circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Connect the connector of BCM.

2. Disconnect the connector of combination meter.

3. Check the resistance between the combination meter harness connector terminals.

   • With full TFT meter

     Combination meter harness connector			Resistance (Ω)
     Connector No.	Terminal No.
     M44	18	19	Approx. 54 – 66

   • With 7 inch information display meter

     Combination meter harness connector			Resistance (Ω)
     Connector No.	Terminal No.
     M24	18	19	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 4.

NO>>

Repair the combination meter branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the combination meter. Refer to the following.

• Full TFT meter: Diagnosis Procedure

• 7 inch information display: Diagnosis Procedure

Is the inspection result normal?

YES (Present error)>>

Replace the combination meter. Refer to the following.

• Full TFT meter: Removal and Installation

• 7 inch information display: Removal and Installation

YES (Past error)>>

Error was detected in the combination meter branch line.

NO>>

Repair the power supply and the ground circuit.

Adp Branch Line Circuit Nissan Pathfinder

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Driver seat control unit

   • Harness connector B220

   • Harness connector B74

   • BCM

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of BCM.

2. Check the continuity between the BCM harness connector terminals.

BCM harness connector				Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M80	118	B59	87	Existed
	117		86	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (Nissan Pathfinder vehicle CAN communication 2 circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of driver seat control unit.

2. Check the resistance between the driver seat control unit harness connector terminals.

   Driver seat control unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   B209	20	19	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 4.

NO>>

Repair the driver seat control unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the driver seat control unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the driver seat control unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the driver seat control unit branch line.

NO>>

Repair the power supply and the ground circuit.

Avm Branch Line Circuit (its Can Communication 1 Circuit) Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Around view monitor control unit

   • 8CH CAN gateway

Is the inspection result normal?

YES-1>>

Without Automatic Emergency Braking: GO TO 2.

YES-2>>

With Automatic Emergency Braking: GO TO 3.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M159	44	35	Existed
   	43	36	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (ITS CAN communication 1 circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of 8CH CAN gateway. (Without Automatic Emergency Braking)

2. Disconnect the connector of around view monitor control unit.

3. Check the resistance between the around view monitor control unit harness connector terminals.

   Around view monitor control unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M96	3	20	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 4.

NO>>

Repair the around view monitor control unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the around view monitor control unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the around view monitor control unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the around view monitor control unit branch line.

NO>>

Repair the power supply and the ground circuit.

Lane Branch Line Circuit Nissan Pathfinder Fifth generation

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Front camera unit

   • Harness connector R1

   • Harness connector M1

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of front camera unit.

2. Check the resistance between the front camera unit harness connector terminals.

   Front camera unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   R17	7	3	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the front camera unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the front camera unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the front camera unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the front camera unit branch line.

NO>>

Repair the power supply and the ground circuit.

E-Hud Branch Line Circuit Nissan Pathfinder 2025

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the head up display unit for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of head up display unit.

2. Check the resistance between the head up display unit harness connector terminals.

   Head up display unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M107	3	5	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the head up display unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the head up display unit. Refer to the following.

• Full TFT meter: Diagnosis Procedure

• 7 inch information display: Diagnosis Procedure

Is the inspection result normal?

YES (Present error)>>

Replace the head up display unit. Refer to the following.

• Full TFT meter: Removal and Installation

• 7 inch information display: Removal and Installation

YES (Past error)>>

Error was detected in the head up display unit branch line.

NO>>

Repair the power supply and the ground circuit.

Strg Branch Line Circuit Nissan Pathfinder SUV

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the steering angle sensor for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of steering angle sensor.

2. Check the resistance between the steering angle sensor harness connector terminals.

   Steering angle sensor harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M54	6	7	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the steering angle sensor branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the steering angle sensor. Refer to Wiring Diagram.

Is the inspection result normal?

YES (Present error)>>

Replace the steering angle sensor. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the steering angle sensor branch line.

NO>>

Repair the power supply and the ground circuit.

Abs Branch Line Circuit Nissan Pathfinder

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of ABS actuator and electric unit (control unit).

2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector terminals.

   ABS actuator and electric unit (control unit) harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   E125	5	19	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the ABS actuator and electric unit (control unit) branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the ABS actuator and electric unit (control unit) branch line.

NO>>

Repair the power supply and the ground circuit.

E-Shift Branch Line Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the terminals and connectors of the electric shift control module for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of electric shift control module.

2. Check the resistance between the electric shift control module harness connector terminals.

   Electric shift control module harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M36	32	16	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 3.

NO>>

Repair the electric shift control module branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the electric shift control module. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the electric shift control module. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the electric shift control module branch line.

NO>>

Repair the power supply and the ground circuit.

Av Branch Line Circuit Nissan Pathfinder 2025

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • AV control unit

   • 8CH CAN gateway

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M5	22	19	Existed
   	23	20	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (diagnosis CAN communication circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Connect the connector of 8CH CAN gateway.

2. Disconnect the connector of AV control unit.

3. Check the resistance between the AV control unit harness connector terminals.

   • Without BOSE audio system

     AV control unit harness connector			Resistance (Ω)
     Connector No.	Terminal No.
     M123	21	41	Approx. 54 – 66

   • With BOSE audio system

     AV control unit harness connector			Resistance (Ω)
     Connector No.	Terminal No.
     M160	21	41	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 4.

NO>>

Repair the AV control unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the AV control unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the AV control unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the AV control unit branch line.

NO>>

Repair the power supply and the ground circuit.

Wl Chg Branch Line Circuit Nissan Pathfinder 2025

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Wireless charger unit

   • Harness connector M215

   • Harness connector M63

   • 8CH CAN gateway

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M5	22	19	Existed
   	23	20	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (IT CAN communication circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Connect the connector of 8CH CAN gateway.

2. Disconnect the connector of wireless charger unit.

3. Check the resistance between the wireless charger unit harness connector terminals.

   Wireless charger unit harness connector			Resistance (Ω)
   Connector No.	Terminal No.
   M216	2	6	Approx. 54 – 66

Is the measurement value within the specification?

YES>>

GO TO 4.

NO>>

Repair the wireless charger unit branch line.

CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the wireless charger unit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES (Present error)>>

Replace the wireless charger unit. Refer to Removal and Installation.

YES (Past error)>>

Error was detected in the wireless charger unit branch line.

NO>>

Repair the power supply and the ground circuit.

Dlc Branch Line Circuit Nissan Pathfinder Fifth generation

Diagnosis Procedure

CHECK CONNECTOR

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).

   • Data link connector

   • 8CH CAN gateway

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M5	5	3	Existed
   	4	2	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair the root cause (diagnosis CAN communication circuit side). Refer to Diagnosis Procedure.

CHECK HARNESS FOR OPEN CIRCUIT

1. Connect the connector of 8CH CAN gateway.

2. Check the resistance between the data link connector terminals.

   Data link connector			Resistance (Ω)
   Connector No.	Terminal No.
   M22	6	14	Approx. 54 – 66

Is the measurement value within the specification?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the data link connector branch line circuit.

NO>>

Repair the data link connector branch line.

Vehicle Can Communication 2 Circuit Nissan Pathfinder

Diagnosis Procedure

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the unit connectors on Nissan Pathfinder vehicle CAN communication 2 circuit.

4. Check the terminals and connectors for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the BCM harness connector terminals.

BCM harness connector				Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
B59	87	M80	118	Existed
	86		117	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the BCM harness connector terminals.

BCM harness connector			Continuity
Connector No.	Terminal No.
B59	87	86	Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the BCM and the ground.

BCM harness connector		Ground	Continuity
Connector No.	Terminal No.
B59	87		Not existed
	86		Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace the root cause.

CHECK BCM TERMINATION CIRCUIT

1. Remove the BCM.

2. Check the resistance between the BCM terminals.

   BCM		Resistance (Ω)
   Terminal No.
   87	86	Approx. 108 – 132
   118	117	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 6.

NO>>

Replace the BCM.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 7.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of Nissan Pathfinder vehicle CAN communication circuit 2.

   NOTE:

   BCM has two termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Vehicle Can Communication 3 Circuit Nissan Pathfinder

Diagnosis Procedure

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the control unit connectors on Nissan Pathfinder vehicle CAN communication 3 circuit.

4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector and BCM harness connector.

8CH CAN gateway harness connector		BCM harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M159	33	M19	45	Existed
	34		46	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector terminals.

8CH CAN gateway harness connector			Continuity
Connector No.	Terminal No.
M159	33	34	Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway and the ground.

8CH CAN gateway harness connector		Ground	Continuity
Connector No.	Terminal No.
M159	33		Not existed
	34		Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace (if shield line is short) the root cause.

CHECK 8CH CAN gateway AND BCM TERMINATION CIRCUIT

1. Remove the 8CH CAN gateway and the BCM.

2. Check the resistance between the 8CH CAN gateway terminals.

   8CH CAN gateway		Resistance (Ω)
   Terminal No.
   33	34	Approx. 108 – 132

3. Check the resistance between the BCM terminals.

   BCM		Resistance (Ω)
   Terminal No.
   45	46	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 6.

NO (BCM)>>

Replace the BCM.

NO (8CH CAN gateway)>>

GO TO 8.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 7.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of Nissan Pathfinder vehicle CAN communication 3 circuit.

   NOTE:

   8CH CAN gateway and BCM have a termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

CHECK WARNING LAMP

1. Turn the ignition switch ON.

2. Check the following warning lamp.

   • VDC warning lamp

   • Brake warning lamp

   • Engine oil pressure warning lamp

Is any of the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 9.

CHECK NAVIGATION SYSTEM OPERATION

Check navigation system operation.

NOTE:

Navigation system is not applied: Replace the 8CH CAN gateway.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the 8CH CAN gateway.

Its Can Communication 3 Circuit Nissan Pathfinder Fifth generation

Diagnosis Procedure

CHECK CAN DIAGNOSIS

Check the CAN diagnosis results from CONSULT to see that the ITS CAN communication 1 circuit and ITS CAN communication 4 circuit have no malfunction.

Are the ITS CAN communication 1 circuit and ITS CAN communication 4 circuit normal?

YES>>

GO TO 2.

NO>>

Check and repair ITS CAN communication 1 circuit and/or ITS CAN communication 4 circuit.

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the control unit connectors on ITS CAN communication 3 circuit.

4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the ADAS control unit 2 harness connector and harness connector M74.

ADAS control unit 2 harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M192	31	M74	1	Existed
	32		2	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the ADAS control unit 2 harness connector terminals.

ADAS control unit 2 harness connector			Continuity
Connector No.	Terminal No.
M192	31	32	Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the ADAS control unit 2 and the ground.

ADAS control unit 2 harness connector		Ground	Continuity
Connector No.	Terminal No.
M192	31		Not existed
	32		Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Check the harness and repair or replace (if shield line is short) the root cause.

CHECK SIDE RADAR LH AND SIDE RADAR RH TERMINATION CIRCUIT

1. Remove the side radar LH and the side radar RH.

2. Check the resistance between the side radar LH terminals.

   Side radar LH		Resistance (Ω)
   Terminal No.
   1	2	Approx. 108 – 132

3. Check the resistance between the side radar RH terminals.

   Side radar RH		Resistance (Ω)
   Terminal No.
   1	2	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 7.

NO>>

Replace the side radar LH and/or the side radar RH.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 8.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of ITS CAN communication 3 circuit.

   NOTE:

   Side radar LH and side radar RH have a termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Its Can Communication 4 Circuit Nissan Pathfinder 2022

Diagnosis Procedure

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the control unit connectors on ITS CAN communication 4 circuit.

4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES-1>>

With Automatic Emergency Braking: GO TO 2.

YES-2>>

Without Automatic Emergency Braking: GO TO 6.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector and ADAS control unit 2 harness connector.

8CH CAN gateway harness connector		ADAS control unit 2 harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M159	37	M192	28	Existed
	38		29	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector terminals.

8CH CAN gateway harness connector			Continuity
Connector No.	Terminal No.
M159	37	38	Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway and the ground.

8CH CAN gateway harness connector		Ground	Continuity
Connector No.	Terminal No.
M159	37		Not existed
	38		Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace (if shield line is short) the root cause.

CHECK 8CH CAN gateway AND ADAS control unit 2 TERMINATION CIRCUIT

1. Remove the 8CH CAN gateway and the ADAS control unit 2.

2. Check the resistance between the 8CH CAN gateway terminals.

   8CH CAN gateway		Resistance (Ω)
   Terminal No.
   37	38	Approx. 108 – 132

3. Check the resistance between the ADAS control unit 2 terminals.

   ADAS control unit 2		Resistance (Ω)
   Terminal No.
   28	29	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 10.

NO>>

Replace the 8CH CAN gateway and/or the ADAS control unit 2.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M159	37	42	Existed
   	38	41	Existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector terminals.

8CH CAN gateway harness connector			Continuity
Connector No.	Terminal No.
M159	37	38	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Check the harness and repair the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway and the ground.

8CH CAN gateway harness connector		Ground	Continuity
Connector No.	Terminal No.
M159	37		Not existed
	38		Not existed

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Check the harness and repair the root cause.

CHECK 8CH CAN GATEWAY TERMINATION CIRCUIT

1. Remove the 8CH CAN gateway.

2. Check the resistance between the 8CH CAN gateway terminals.

   8CH CAN gateway		Resistance (Ω)
   Terminal No.
   37	38	Approx. 108 – 132
   42	41	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 10.

NO>>

Replace the 8CH CAN gateway.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 11.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of ITS CAN communication 4 circuit.

   NOTE:

   • 8CH CAN gateway and ADAS control unit 2 have a termination circuits. Check other units first. (With Automatic Emergency Braking)

   • 8CH CAN gateway has two termination circuits. Check other units first. (Without Automatic Emergency Braking)

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Its Can Communication 5 Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK CAN DIAGNOSIS

Check the CAN diagnosis results from CONSULT to see that the ITS CAN communication 4 circuit have no malfunction.

Are the ITS CAN communication 4 circuit normal?

YES>>

GO TO 2.

NO>>

Check and repair ITS CAN communication 4 circuit.

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the control unit connectors on ITS CAN communication 5 circuit.

4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the around view monitor control unit harness connector and sonar control unit harness connector.

Around view monitor control unit harness connector		Sonar control unit harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M96	21	M75	39	Existed
	5		40	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the around view monitor control unit harness connector terminals.

Around view monitor control unit harness connector			Continuity
Connector No.	Terminal No.
M96	21	5	Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the around view monitor control unit and the ground.

Around view monitor control unit harness connector		Ground	Continuity
Connector No.	Terminal No.
M96	21		Not existed
	5		Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Check the harness and repair or replace (if shield line is short) the root cause.

CHECK AROUND VIEW MONITOR CONTROL UNIT AND SONAR CONTROL UNIT TERMINATION CIRCUIT

1. Remove the around view monitor control unit and the sonar control unit.

2. Check the resistance between the around view monitor control unit terminals.

   Around view monitor control unit		Resistance (Ω)
   Terminal No.
   21	5	Approx. 108 – 132

3. Check the resistance between the sonar control unit terminals.

   Sonar control unit		Resistance (Ω)
   Terminal No.
   39	40	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 7.

NO>>

Replace the around view monitor control unit and/or the sonar control unit.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 8.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of ITS CAN communication 5 circuit.

   NOTE:

   Around view monitor control unit and sonar control unit have a termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Chassis Can Communication 2 Circuit Nissan Pathfinder 2022

Diagnosis Procedure

CHECK CAN DIAGNOSIS

Check the CAN diagnosis results from CONSULT to see that the chassis CAN communication 3 circuit have no malfunction.

Are the chassis CAN communication 3 circuit normal?

YES>>

GO TO 2.

NO>>

Check and repair chassis CAN communication 3 circuit.

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the control unit connectors on chassis CAN communication 2 circuit.

4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the chassis control module harness connector and ABS actuator and electric unit (control unit) harness connector.

Chassis control module harness connector		ABS actuator and electric unit (control unit) harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
E12	19	E125	5	Existed
	7		19	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the chassis control module harness connector terminals.

Chassis control module harness connector			Continuity
Connector No.	Terminal No.
E12	19	7	Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the chassis control module and the ground.

Chassis control module harness connector		Ground	Continuity
Connector No.	Terminal No.
E12	19		Not existed
	7		Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Check the harness and repair or replace (if shield line is short) the root cause.

CHECK CHASSIS CONTROL MODULE AND ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) TERMINATION CIRCUIT

1. Remove the chassis control module and the ABS actuator and electric unit (control unit).

2. Check the resistance between the chassis control module terminals.

   Chassis control module		Resistance (Ω)
   Terminal No.
   19	7	Approx. 108 – 132

3. Check the resistance between the ABS actuator and electric unit (control unit) terminals.

   ABS actuator and electric unit (control unit)		Resistance (Ω)
   Terminal No.
   5	19	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 7.

NO>>

Replace the chassis control module and/or the ABS actuator and electric unit (control unit).

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 8.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of chassis CAN communication 2 circuit.

   NOTE:

   Chassis control module and ABS actuator and electric unit (control unit) have a termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Drivetrain Can Communication 1 Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK CAN DIAGNOSIS

Check the CAN diagnosis results from CONSULT to see that the drivetrain CAN communication 2 circuit has no malfunction.

Is the drivetrain CAN communication circuit 2 normal?

YES>>

GO TO 2.

NO>>

Check and repair drivetrain CAN communication 2 circuit.

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect all the unit connectors on drivetrain CAN communication 1 circuit.

4. Check terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the ECM harness connector and the chassis control module harness connector.

ECM harness connector		Chassis control module harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
F79	169	E12	17	Existed
	165		4	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the ECM harness connector terminals.

ECM harness connector			Continuity
Connector No.	Terminal No.
F79	169	165	Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the ECM harness connector and the ground.

ECM harness connector		Ground	Continuity
Connector No.	Terminal No.
F79	169		Not existed
	165		Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Check the harness and repair the root cause.

CHECK TERMINATION CIRCUIT

1. Remove the ECM and the chassis control module.

2. Check the resistance between the ECM terminals.

   ECM		Resistance (Ω)
   Terminal No.
   169	165	Approx. 108 – 132

3. Check the resistance between the chassis control module terminals.

   Chassis control module		Resistance (Ω)
   Terminal No.
   17	4	Approx. 108 – 132

Is the measurement value within the specification?

YES>>

GO TO 7.

NO>>

Replace the ECM and/or the chassis control module.

CHECK SYMPTOM

Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

Inspection result

Reproduced>>

GO TO 8.

Non-reproduced>>

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

CHECK UNIT REPRODUCTION

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Disconnect one of the unit connectors of drivetrain CAN 1 communication circuit.

   NOTE:

   ECM and chassis control module have a termination circuits. Check other units first.

4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom (Results from interview with customer)” are reproduced.

   NOTE:

   Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced>>

Connect the connector. Check other units as per the above procedure.

Non-reproduced>>

Replace the unit whose connector was disconnected.

Diagnostic Can Communication Circuit Nissan Pathfinder 2022

Diagnosis Procedure

CONNECTOR INSPECTION

1. Turn the ignition switch OFF.

2. Disconnect the battery cable from the negative terminal.

3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

   • Data link connector

   • 8CH CAN gateway

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1. Disconnect the connector of 8CH CAN gateway.

2. Check the continuity between the 8CH CAN gateway harness connector terminals.

   8CH CAN gateway harness connector			Continuity
   Connector No.	Terminal No.
   M5	5	3	Existed
   	4	2	Existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector terminals.

8CH CAN gateway harness connector			Continuity
Connector No.	Terminal No.
M5	5	4	Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check the harness and repair or replace the root cause.

CHECK HARNESS CONTINUITY (SHORT CIRCUIT)

Check the continuity between the 8CH CAN gateway harness connector and the ground.

8CH CAN gateway harness connector		Ground	Continuity
Connector No.	Terminal No.
M5	5		Not existed
	4		Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check the harness and repair or replace the root cause.

CHECK 8CH CAN GATEWAY TERMINATION CIRCUIT

1. Remove the 8CH CAN gateway.

2. Check the resistance between the 8CH CAN gateway terminals.

   8CH CAN gateway		Resistance (Ω)
   Terminal No.
   5	4	Approx. 108 – 132
   3	2	Approx. 108 – 132

Is the measurement value within the specification?

YES (Present error)>>

Check CAN system type decision again.

YES (Past error)>>

Error was detected in the diagnostic CAN communication circuit.

NO>>

Replace the 8CH CAN gateway.