Nissan Pathfinder: Dtc/circuit Diagnosis (B0001 Driver Air Bag Module ... B1004 Passenger Air Bag Module Active Vent)

• B0001 Driver Air Bag Module
• B0010 Assist A/b Module
• B0030 Rear Side A/b Module Lh
• B0052 Front Seat Belt Buckle Switch Rh
• B0073 Pre-Ten Rear Lh
• B0094 Crash Zone Sens
• B00a0 Occupant Sens Unit
• B00d5 Pass A/b Indicator
• B1000 Air Bag Diagnosis Sensor Unit
• B1004 Passenger Air Bag Module Active Vent

B0001 Driver Air Bag Module Nissan Pathfinder 5th Gen

DTC Description

DESCRIPTION

DTC B0001 DRIVER AIR BAG MODULE

The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable. The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the driver air bag module including the spiral cable.

PART LOCATION

Refer to Component Parts Location.

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC detecting condition
B0001	DRIVER AIR BAG MODULE [SHORT]	1A	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—
	DRIVER AIR BAG MODULE [OPEN]	13	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—
	DRIVER AIR BAG MODULE [VB-SHORT]	12	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—
	DRIVER AIR BAG MODULE [GND-SHORT]	11	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—
	DRIVER AIR BAG MODULE [SHORT]	09	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—
	DRIVER AIR BAG MODULE [SHORT]	00	Diagnosis condition	When push-button ignition switch is ON.
			Signal (terminal)	Driver air bag module circuit (DR1) (terminals 37 and 38)
			Threshold	—
			Diagnosis delay time	—

POSSIBLE CAUSE

[OPEN]

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of driver air bag module

• Internal malfunction of air bag diagnosis sensor unit

[VB-SHORT]

• Connection malfunction or short circuit to power supply of harness and connector

• Internal malfunction of driver air bag module

• Internal malfunction of air bag diagnosis sensor unit

[GND-SHORT]

• Connection malfunction or short circuit to ground of harness and connector

• Internal malfunction of driver air bag module

• Internal malfunction of air bag diagnosis sensor unit

[SHORT]

• Connection malfunction or short circuit of harness and connector

• Internal malfunction of driver air bag module

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE (With CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition ON.

2. Check for DTC.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

YES>>

GO TO 2.

NO>>

Inspection End.

ERASE SELF-DIAG RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

CHECK SELF-DIAG RESULT

1. Ignition switch ON.

2. Check the air bag warning lamp status. Refer to Trouble Diagnosis without CONSULT.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Refer to Intermittent Incident.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the harness.

CHECK SPIRAL CABLE CIRCUIT

1. Ignition switch OFF.

2. Disconnect driver air bag module harness connectors and spiral cable harness connector.

3. Check continuity between driver air bag module harness connector and spiral cable connector.

   Driver air bag module		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M89	39	M53	18	Yes
   	40		19
   M87	37		20
   	38		19

4. Check continuity between driver air bag module harness connector and ground.

   Driver air bag module		Ground	Continuity
   Connector	Terminal
   M89	39		No
   	40
   M87	37
   	38

Is DTC still current?

YES>>

GO TO 5.

NO>>

Refer to Intermittent Incident.

DRIVER AIR BAG MODULE

CONSULT

1. Replace the driver air bag module. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC. Inspection End.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC. Inspection End.

RELATED HARNESS

Replace the related harness.

>>

Inspection End.

B0010 Assist A/b Module Nissan Pathfinder 2022

DTC Description

DESCRIPTION

DTC B0010 PASSENGER AIR BAG MODULE

The passenger air bag module is dual stage (US/CAN models) and single stage (MEX models) and is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the passenger air bag module.

PART LOCATION

Refer to Component Parts Location.

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC detecting condition
B0010	ASSIST A/B MODULE [SHORT]	1A	Diagnosis condition	When push-button ignition switch is ON
			Signal (terminal)	Front passenger air bag module circuit (AS1) (terminals 1 and 2)
			Threshold	—
			Diagnosis delay time	—
	ASSIST A/B MODULE [OPEN]	13	Diagnosis condition	When push-button ignition switch is ON
			Signal (terminal)	Front passenger air bag module circuit (AS1) (terminals 1 and 2)
			Threshold	—
			Diagnosis delay time	—
	ASSIST A/B MODULE [VB-SHORT]	12	Diagnosis condition	When push-button ignition switch is ON
			Signal (terminal)	Front passenger air bag module circuit (AS1) (terminals 1 and 2)
			Threshold	—
			Diagnosis delay time	—
	ASSIST A/B MODULE [GND-SHORT]	11	Diagnosis condition	When push-button ignition switch is ON
			Signal (terminal)	Front passenger air bag module circuit (AS1) (terminals 1 and 2)
			Threshold	—
			Diagnosis delay time	—
	ASSIST A/B MODULE [SHORT]	09	Diagnosis condition	When push-button ignition switch is ON
			Signal (terminal)	Front passenger air bag module circuit (AS1) (terminals 1 and 2)
			Threshold	—
			Diagnosis delay time	—

POSSIBLE CAUSE

[OPEN]

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of front passenger air bag module

• Internal malfunction of air bag diagnosis sensor unit

[VB-SHORT]

• Connection malfunction or short circuit to power supply of harness and connector

• Internal malfunction of front passenger air bag module

• Internal malfunction of air bag diagnosis sensor unit

[GND-SHORT]

• Connection malfunction or short circuit to ground of harness and connector

• Internal malfunction of front passenger air bag module

• Internal malfunction of air bag diagnosis sensor unit

[SHORT]

• Connection malfunction or short circuit of harness and connector

• Internal malfunction of front passenger air bag module

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE (With CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Check for DTC.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

YES>>

GO TO 2.

NO>>

Inspection End.

ERASE SELF-DIAG RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

CHECK SELF-DIAG RESULT

1. Ignition switch ON.

2. Check the air bag warning lamp status. Refer to Trouble Diagnosis without CONSULT.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Refer to Intermittent Incident.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the harness.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Refer to Intermittent Incident.

FRONT PASSENGER AIR BAG MODULE

CONSULT

1. Replace the front passenger air bag module. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC. Inspection End.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC. Inspection End.

RELATED HARNESS

Replace the related harness.

>>

Inspection End.

B0030 Rear Side A/b Module Lh Nissan Pathfinder 2025

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B0030-1A	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuits are shorted to each other
		Diagnosis delay time	2 seconds or more.
B0030-1B	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuit resistance is above threshold
		Diagnosis delay time	2 seconds or more.
B0030-55	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	When a mismatch is detected between in the configuration data stored in the air bag diagnosis sensor unit and Nissan Pathfinder vehicle specification.
		Diagnosis delay time	2 seconds or more.
B0030-11	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuit is shorted to ground
		Diagnosis delay time	2 seconds or more.
B0030-09	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuit is shorted to other
		Diagnosis delay time	2 seconds or more.
B0030-12	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuit is shorted to power supply circuit
		Diagnosis delay time	2 seconds or more.
B0030-13	REAR SIDE A/B MODULE LH (Second Row Left Side Air bag Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear side air bag module LH signal
		Threshold	Rear side air bag module LH circuit is open
		Diagnosis delay time	2 seconds or more.

POSSIBLE CAUSE

• Connection malfunction of harness and connector

• Internal malfunction of rear side air bag module LH

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “AIR BAG”.

Is malfunctioning part detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace harness connector.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace wiring harness.

REPLACE REAR SIDE AIR BAG MODULE LH

1. Replace rear side air bag module LH. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 4.

NO>>

Inspection End.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 1.

NO>>

Inspection End.

B0052 Front Seat Belt Buckle Switch Rh Nissan Pathfinder R53

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B0052–11	Front seat belt buckle switch RH (Passenger Seat Belt Sensor)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Front seat belt buckle switch RH signal
		Threshold	Front seat belt buckle switch RH circuit is shorted to ground
		Diagnosis delay time	2 seconds or more.
B0052–12	Front seat belt buckle switch RH (Passenger Seat Belt Sensor)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Front seat belt buckle switch RH signal
		Threshold	Front seat belt buckle switch RH circuit is shorted to power supply circuit
		Diagnosis delay time	2 seconds or more.
B0052–2B	Front seat belt buckle switch RH (Passenger Seat Belt Sensor)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Front seat belt buckle switch RH signal
		Threshold	Front seat belt buckle switch RH circuit is shorted to other
		Diagnosis delay time	2 seconds or more.
B0052–29	Front seat belt buckle switch RH (Passenger Seat Belt Sensor)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Front seat belt buckle switch RH signal
		Threshold	Front seat belt buckle switch RH circuit is out of order
		Diagnosis delay time	2 seconds or more.

POSSIBLE CAUSE

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of front seat belt buckle switch RH

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAGNOSTIC RESULT

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “AIR BAG”.

Is malfunctioning part detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace harness connector.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace wiring harness.

REPLACE FRONT SEAT BELT BUCKLE SWITCH RH

1. Replace front seat belt buckle RH. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 4.

NO>>

Inspection End.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 1.

NO>>

Inspection End.

B0073 Pre-Ten Rear Lh Nissan Pathfinder 2022

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B0073-09	PRE-TEN REAR LH (Second Row Left Seat Belt Pretensioner Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear seat belt pre-tensioner LH signal
		Threshold	Rear seat belt pre-tensioner LH circuit is shorted to other
		Diagnosis delay time	2 seconds or more.
B0073-1A	PRE-TEN REAR LH (Second Row Left Seat Belt Pretensioner Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear seat belt pre-tensioner LH signal
		Threshold	Rear seat belt pre-tensioner LH circuits are shorted to each other
		Diagnosis delay time	2 seconds or more.
B0073-1B	PRE-TEN REAR LH (Second Row Left Seat Belt Pretensioner Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear seat belt pre-tensioner LH signal
		Threshold	Rear seat belt pre-tensioner LH circuit resistance is above threshold
		Diagnosis delay time	2 seconds or more.
B0073-11	PRE-TEN REAR LH (Second Row Left Seat Belt Pretensioner Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear seat belt pre-tensioner LH signal
		Threshold	Rear seat belt pre-tensioner LH circuit is shorted to ground
		Diagnosis delay time	2 seconds or more.
B0073-13	PRE-TEN REAR LH (Second Row Left Seat Belt Pretensioner Deployment Control)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Rear seat belt pre-tensioner LH signal
		Threshold	Rear seat belt pre-tensioner LH circuit is shorted to other
		Diagnosis delay time	2 seconds or more.

POSSIBLE CAUSE

• Connection malfunction or short circuit of harness and connector

• Internal malfunction of rear seat belt pre-tensioner LH

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Perform “Self Diagnostic Result” mode of “AIR BAG”.

Is malfunctioning part detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace harness connector.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace wiring harness.

REPLACE REAR SEAT BELT PRE-TENSIONER LH

1. Replace rear seat belt pre-tensioner LH. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 4.

NO>>

Inspection End.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 1.

NO>>

Inspection End.

B0094 Crash Zone Sens Nissan Pathfinder

DTC Description

DESCRIPTION

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC detecting condition
B0094	CRASH ZONE SENS [RESET]	93	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [COMM ERR]	81	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [OPEN]	88	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [UNMATCH]	86	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [OFFSET ERR]	28	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [SELF-DIAG ERR]	25	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 18 and 19)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [LOWER LIMIT ERR]	23	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [UPPER LIMIT ERR]	24	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—
	CRASH ZONE SENS [GND-SHORT]	11	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Crash zone sensor (terminals 55 and 56)
			Threshold	—
			Diagnosis delay time	—

POSSIBLE CAUSE

[RESET], [COMM ERR]

• Connection malfunction of harness or connector

• Internal malfunction of crash zone sensor

• Internal malfunction of air bag diagnosis sensor unit

[OPEN]

• Connection malfunction or open circuit of harness or connector

• Internal malfunction of crash zone sensor

• Internal malfunction of air bag diagnosis sensor unit

[UNMATCH]

• Air bag diagnosis sensor unit and crash zone sensor is different from the part specified

[OFFSET ERR], [SELF-DIAG ERR], [LOWER LIMIT ERR], [UPPER LIMIT ERR]

• Internal malfunction of crash zone sensor

• Internal malfunction of air bag diagnosis sensor unit

[GND-SHORT]

• Connection malfunction or short circuit to ground of harness or connector

• Internal malfunction of crash zone sensor

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE (With CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Check for DTC.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

YES>>

GO TO 2.

NO>>

Inspection End.

ERASE SELF-DIAG RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Check the air bag warning lamp status. Refer to Trouble Diagnosis without CONSULT.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Refer to Intermittent Incident.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the harness.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Refer to Intermittent Incident.

CRASH ZONE SENSOR

CONSULT

1. Replace the crash zone sensor. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC. Inspection End.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC. Inspection End.

RELATED HARNESS

Replace the related harness.

>>

Inspection End.

B00a0 Occupant Sens Unit Nissan Pathfinder R53

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)		DTC detecting condition
B00A0	OCCUPANT SENS UNIT [Occupant Classification System (Subfault)]	[ABNORMAL VOLTAGE]	00	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor signal
				Threshold	Power supply malfunction of occupant detection sensor
				Diagnosis delay time	—
		[UNIT MALFUNC]	02	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor signal
				Threshold	Malfunction of occupant detection sensor
				Diagnosis delay time	—
		[UNIT MALFUNC]	09	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor signal
				Threshold	Malfunction of occupant detection sensor
				Diagnosis delay time	—
	OCCUPANT SENS UNIT [Occupant Classification System (Subfault)]	[UNIT MALFUNC]	04	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Malfunction of occupant detection sensor control unit
				Diagnosis delay time	—
		[COMM ERR]	83	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Communication malfunction of occupant detection sensor control unit Communication blank of occupant detection sensor control unit
				Diagnosis delay time	—
		[COMM ERR]	86	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Communication malfunction of occupant detection sensor control unit Communication blank of occupant detection sensor control unit
				Diagnosis delay time	—
B00A0		[COMM ERR]	87	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Communication malfunction of occupant detection sensor control unit Communication blank of occupant detection sensor control unit
				Diagnosis delay time	—
		[COMM ERR]	88	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Communication malfunction of occupant detection sensor control unit Communication blank of occupant detection sensor control unit
				Diagnosis delay time	—
		[UNDEFINED]	8F	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Undefined status of occupant detection sensor control unit
				Diagnosis delay time	—
		[RESET]	93	Diagnosis condition	Ignition switch ON.
				Signal (terminal)	Occupant detection sensor unit signal
				Threshold	Reset malfunction of occupant detection sensor control unit
				Diagnosis delay time	—

POSSIBLE CAUSE

• [B00A0–00]

  • Connection malfunction or short circuit to power supply of harness or connector

  • Internal malfunction of occupant detection sensor

  • Internal malfunction of air bag diagnosis sensor unit

• [B00A0–02, B00A0–09]

  • Connection malfunction of harness and connector

  • Internal malfunction of occupant detection sensor

  • Internal malfunction of air bag diagnosis sensor unit

• [B00A0–04, B00A0–83, B00A0–86, B00A0–87, B00A0–88, B00A0–8F]

  • Connection malfunction or open circuit of harness and connector

  • Internal malfunction of occupant detection sensor control unit

  • Internal malfunction of air bag diagnosis sensor unit

• [B00A0–93]

  • Connection malfunction of harness and connector

  • Internal malfunction of occupant detection sensor control unit

  • Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE (With CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Check the DTC.

Is the DTC detected?

YES>>

Refer to:

• B00A0-00, -02 or -09: Diagnosis Procedure (B00A0-00, -02 or -09)

• B00A0-04: Diagnosis Procedure (B00A0-04)

• B00A0-83, -86, -87, -88 or -8F: Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F)

• B00A0-93: Diagnosis Procedure (B00A0-93)

YES>>

GO TO 2.

NO>>

Inspection End.

ERASE SELF-DIAG RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to:

• B00A0-00, -02 or -09: Diagnosis Procedure (B00A0-00, -02 or -09)

• B00A0-04: Diagnosis Procedure (B00A0-04)

• B00A0-83, -86, -87, -88 or -8F: Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F)

• B00A0-93: Diagnosis Procedure (B00A0-93)

DTC CONFIRMATION PROCEDURE (Without CONSULT)

CHECK SELF-DIAG RESULT

1. Ignition switch ON.

2. Check the air bag warning lamp status. Refer to SRS Operation Check.

NOTE:

SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is the DTC detected?

YES>>

Refer to:

• B00A0-00, -02 or -09: Diagnosis Procedure (B00A0-00, -02 or -09)

• B00A0-04: Diagnosis Procedure (B00A0-04)

• B00A0-83, -86, -87, -88 or -8F: Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F)

• B00A0-93: Diagnosis Procedure (B00A0-93)

NO>>

Inspection End.

Diagnosis Procedure (B00A0-00, -02 or -09)

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors)

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Perform the following repairs. Then, GO TO 2.

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS CONTROL UNIT AND SENSORS

CONSULT

1. Replace the OCS control unit and sensors. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 4.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

RELATED HARNESS

CONSULT

1. Replace the related harnesses (OCS sensors to OCS control unit, OCS control unit to seat, seat to main harness, main harness to air bag diagnosis sensor unit).

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE PASSENGER SEAT CUSHION FRAME

CONSULT

1. Replace the passenger seat cushion frame. Refer to Seat Cushion.

2. Clear DTC and perform zero point reset. Refer to Description.

>>

Inspection End.

Diagnosis Procedure (B00A0-04)

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors)

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Perform the following repairs. Then, GO TO 2.

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS CONTROL UNIT

CONSULT

1. Replace the OCS control unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 4.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

RELATED HARNESS

CONSULT

1. Replace the related harnesses (OCS sensors to OCS control unit, OCS control unit to seat, seat to main harness, main harness to air bag diagnosis sensor unit)

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS SENSORS

CONSULT

1. Replace the OCS sensors. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE PASSENGER SEAT CUSHION FRAME

CONSULT

1. Replace the passenger seat cushion frame. Refer to Seat Cushion.

2. Clear DTC and perform zero point reset. Refer to Description.

>>

Inspection End.

Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F)

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors)

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Perform the following repairs. Then, GO TO 2.

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS CONTROL UNIT AND SENSORS

CONSULT

1. Replace the OCS control unit and sensors. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 4.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

RELATED HARNESS

CONSULT

1. Replace the related harnesses (OCS sensors to OCS control unit, OCS control unit to seat, seat to main harness, main harness to air bag diagnosis sensor unit).

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE PASSENGER SEAT CUSHION FRAME

CONSULT

1. Replace the passenger seat cushion frame. Refer to Seat Cushion.

2. Clear DTC and perform zero point reset. Refer to Description.

>>

Inspection End.

Diagnosis Procedure (B00A0-93)

WARNING:

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

• Never use unspecified tester or other measuring device.

PERFORM ZERO POINT RESET

CONSULT

1. Perform zero point reset. Refer to Description.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 2.

NO>>

Clear DTC. Inspection End.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis unit to the end component (including any in-line connectors)

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Perform the following repairs. Then, GO TO 3.

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 4.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS CONTROL UNIT

CONSULT

1. Replace the OCS control unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

RELATED HARNESS

CONSULT

1. Replace the related harnesses (OCS sensors to OCS control unit, OCS control unit to seat, seat to main harness, main harness to air bag diagnosis sensor unit)

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE OCS SENSORS

CONSULT

1. Replace the OCS sensors. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 8.

NO>>

Clear DTC and perform zero point reset. Refer to Description.

REPLACE PASSENGER SEAT CUSHION FRAME

CONSULT

1. Replace the passenger seat cushion frame. Refer to Seatback.

2. Clear DTC and perform zero point reset. Refer to Description.

>>

Inspection End.

B00d5 Pass A/b Indicator Nissan Pathfinder SUV

DTC Description

DESCRIPTION

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC detecting condition
B00D5	PASS A/B INDICATOR [UNIT MALFUNC]	04	Diagnosis condition	Ignition switch ON.
			Signal (terminal)	Front passenger air bag OFF indicator is malfunctioning.
			Threshold	—
			Diagnosis delay time	—
	PASS A/B INDICATOR [PWR-SHORT/OPEN]	15	Diagnosis condition	Ignition switch ON.
			Signal (terminal)	Front passenger air bag OFF indicator is malfunctioning.
			Threshold	—
			Diagnosis delay time	—
	PASS A/B INDICATOR [OPEN]	13	Diagnosis condition	Ignition switch ON.
			Signal (terminal)	Front passenger air bag OFF indicator is malfunctioning.
			Threshold	—
			Diagnosis delay time	—
	PASS A/B INDICATOR [VB-SHORT]	12	Diagnosis condition	Ignition switch ON.
			Signal (terminal)	Front passenger air bag OFF indicator is malfunctioning.
			Threshold	—
			Diagnosis delay time	—
	PASS A/B INDICATOR [GND-SHORT]	11	Diagnosis condition	Ignition switch ON.
			Signal (terminal)	Front passenger air bag OFF indicator is malfunctioning.
			Threshold	—
			Diagnosis delay time	—

POSSIBLE CAUSE

[UNIT MALFUNC]

• Internal malfunction of front passenger air bag OFF indicator

• Internal malfunction of air bag diagnosis sensor unit

[PWE-SHORT/OPEN]

• Connection malfunction or short circuit to power supply of harness and connector

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of front passenger air bag OFF indicator

• Internal malfunction of air bag diagnosis sensor unit

[OPEN]

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of front passenger air bag OFF indicator

• Internal malfunction of air bag diagnosis sensor unit

[VB-SHORT]

• Connection malfunction or short circuit to power supply of harness and connector

• Internal malfunction of front passenger air bag OFF indicator

• Internal malfunction of air bag diagnosis sensor unit

[GND-SHORT]

• Connection malfunction or short circuit to ground of harness and connector

• Internal malfunction of front passenger air bag OFF indicator

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE (With CONSULT)

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Check for DTC.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

YES>>

GO TO 2.

NO>>

Inspection End.

ERASE SELF-DIAG RESULT

CONSULT

Erase the DTC.

Can the DTC be erased?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

DTC CONFIRMATION PROCEDURE (Without CONSULT)

CHECK SELF-DIAG RESULT

1. Ignition switch ON.

2. Check the air bag warning lamp status. Refer to Trouble Diagnosis without CONSULT.

NOTE:

SRS will not enter diagnosis mode if no malfunction is detected in user mode.

Is the DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

HARNESS CONNECTOR

Visually inspect all applicable harness connectors for the following:

• Visible damage to connector or terminal

• Loose terminal

• Poor connection

  NOTE:

  All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Perform one of the following repairs:

• Visible damage: Replace the harness.

• Loose terminal: Secure the terminal.

• Poor connection: Secure the connection.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 3.

NO>>

Refer to Intermittent Incident.

WIRING HARNESS

Check the wiring harness for visible damage.

NOTE:

The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors).

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the harness.

CONFIRM DTC

CONSULT

1. Reconnect all harness connectors.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 5.

NO>>

Refer to Intermittent Incident.

PASSENGER AIR BAG OFF INDICATOR

CONSULT

1. Replace the passenger air bag off indicator. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 6.

NO>>

Clear DTC. Inspection End.

AIR BAG DIAGNOSIS SENSOR UNIT

CONSULT

1. Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Ignition switch ON.

3. Check for DTC.

Is DTC still current?

YES>>

GO TO 7.

NO>>

Clear DTC. Inspection End.

RELATED HARNESS

Replace the related harness.

>>

Inspection End.

B1000 Air Bag Diagnosis Sensor Unit Nissan Pathfinder SUV

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B1000-49	Air bag diagnosis sensor unit (Air bag diagnosis sensor unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	—
		Threshold	Air bag diagnosis sensor unit is malfunctioning
		Diagnosis delay time	2 seconds or more.
B1000-55	Air bag diagnosis sensor unit (Air bag diagnosis sensor unit)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	—
		Threshold	When no data are stored in the air bag diagnosis sensor unit
		Diagnosis delay time	2 seconds or more.

POSSIBLE CAUSE

Malfunction in air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “AIR BAG”.

Is malfunctioning part detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

Check Intermittent incident. Refer to Intermittent Incident.

NO>>

Inspection End.

B1004 Passenger Air Bag Module Active Vent Nissan Pathfinder Fifth generation

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B1004-1A	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	Passenger air bag module (active vent) circuits are shorted to each other
		Diagnosis delay time	2 seconds or more.
B1004-1B	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	Passenger air bag module (active vent) circuit resistance is above threshold
		Diagnosis delay time	2 seconds or more.
B1004-09	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	Passenger air bag module (active vent) circuit is shorted to other
		Diagnosis delay time	2 seconds or more.
B1004-11	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	Passenger air bag module (active vent) circuit is shorted to ground
		Diagnosis delay time	2 seconds or more.
B1004-12	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	When ignition switch is ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	Passenger air bag module (active vent) circuit is shorted to power supply circuit
		Diagnosis delay time	2 seconds or more.
B1004-55	Passenger air bag module active vent (Passenger air bag module active vent)	Diagnosis condition	Ignition switch ON.
		Signal (terminal)	Passenger air bag module (active vent) signal
		Threshold	When a mismatch is detected between in the configuration data stored in the air bag diagnosis sensor unit and Nissan Pathfinder vehicle specification.
		Diagnosis delay time	2 seconds or more.

POSSIBLE CAUSE

• Connection malfunction or open circuit of harness and connector

• Internal malfunction of passenger air bag module (active vent)

• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “AIR BAG”.

Is malfunctioning part detected?

YES>>

Refer to Diagnosis Procedure.

NO>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO>>

Confirmation after repair: Inspection End.

Diagnosis Procedure

WARNING:

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

• Never use unspecified tester or other measuring device.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace harness connector.

CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Replace wiring harness.

REPLACE PASSENGER AIR BAG MODULE

1. Replace passenger air bag module. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 4.

NO>>

Inspection End.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to Removal and Installation.

2. Perform DTC confirmation procedure. Refer to DTC Description.

Is DTC detected?

YES>>

GO TO 1.

NO>>

Inspection End.