Nissan Pathfinder: Meter, Warning Lamp & Indicator - Dtc/circuit Diagnosis

• Meter/m&a (combination Meter) ➤
• E-Hud (head up Display Unit) ➤
• Power Supply and Ground Circuit
• Master Speaker Signal Circuit
• Steering Switch Signal a Circuit
• Steering Switch Signal B Circuit
• Illumination Control Switch Signal Circuit
• Fuel Level Sensor Signal Circuit
• Ambient Sensor Signal Circuit
• Head up Display Switch Signal Circuit
• Washer Fluid Level Switch Circuit

Meter/m&a (combination Meter) ➤ Nissan Pathfinder R53

E-Hud (head up Display Unit) ➤ Nissan Pathfinder R53

Power Supply and Ground Circuit Nissan Pathfinder 5th Gen

Combination Meter

Diagnosis Procedure

CHECK FUSES

Check that the following fuses are not blown:

Unit	Location	Fuse No.	Capacity
Combination meter	Fuse block (J/B)	29	10A
		6	10A

Is the fuse blown?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

1. Disconnect combination meter harness connector.

2. Check voltage between combination meter harness connector and ground.

   (+)		(–)	Ignition switch position
   Combination meter
   Connector	Terminal		OFF	ON	START
   M44	5	Ground	Battery voltage	Battery voltage	Battery voltage
   	6		0V	Battery voltage	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK GROUND CIRCUIT

1. Ignition switch OFF.

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

   Combination meter		—	Continuity
   Connector	Terminal
   M44	7	Ground	Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connector.

Head up Display Unit

Diagnosis Procedure

CHECK FUSE

1. Ignition switch OFF.

2. Check that the following fuse is not blown:

   Unit	Location	Fuse No.	Capacity
   Head up display unit	Fuse block (J/B)	48	10A

Is the fuse blown?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK HEAD UP DISPLAY UNIT POWER SUPPLY

1. Disconnect head up display unit harness connector.

2. Ignition switch ON.

3. Check the voltage between head up display unit harness connector and ground.

   (+)		(−)	Voltage (Approx.)
   Head up display unit
   Connector	Terminal
   M107	9	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK HEAD UP DISPLAY UNIT POWER SUPPLY CIRCUIT

1. Ignition switch OFF.

2. Check the continuity between head up display unit harness connector and fuse block (J/B) harness connector.

   Head up display unit		Fuse block (J/B)		Continuity
   Connector	Terminal	Connector	Terminal
   M107	9	M4	7C	Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness or connector.

CHECK HEAD UP DISPLAY UNIT GROUND CIRCUIT

1. Ignition switch OFF.

2. Check the continuity between head up display unit harness connector and ground.

   Head up display unit		Ground	Continuity
   Connector	Terminal
   M107	16		Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connector.

Master Speaker Signal Circuit Nissan Pathfinder R53

Diagnosis Procedure

CHECK MASTER SPEAKER CIRCUIT FOR OPEN

1. Ignition switch OFF.

2. Disconnect combination meter harness connector and master speaker harness connector.

3. Check the continuity between combination meter harness connector and master speaker harness connector.

   Combination meter		Master speaker		Continuity
   Connector	Terminal	Connector	Terminal
   M44	3	M276	1	Yes
   	4		4

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace malfunctioning parts.

CHECK MASTER SPEAKER CIRCUIT FOR SHORT TO GROUND

Check the continuity between master speaker harness connector and ground.

Master speaker		−	Continuity
Connector	Terminal
M276	1	Ground	No
	4

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning parts.

CHECK MASTER SPEAKER CIRCUIT FOR SHORT TO POWER SUPPLY

1. Ignition switch ON.

2. Check the voltage between master speaker harness connector and ground.

Master speaker		−	Voltage (Approx.)
Connector	Terminal
M276	1	Ground	0 V
	4

Is the inspection result normal?

YES>>

Replace master speaker. Refer to Removal and Installation.

NO>>

Repair or replace malfunctioning parts.

Steering Switch Signal a Circuit Nissan Pathfinder R53

Component Function Check

CHECK COMBINATION METER INPUT SIGNAL

CONSULT

1. Ignition switch ON.

2. Select “STRG SW INPUT” in “Data Monitor” mode of “METER/M&A”.

3. Check that the function operates normally according to the following conditions:

Monitor item	Condition		Status
STRG SW INPUT	CONTROL switch	Pressed	SW1
	Scroll dial	Rotated upward	SW2
	Scroll dial	Rotated downward	SW3
	OK switch	Pressed	SW4
	LEFT/BACK switch	Pressed	SW5
	RIGHT switch	Pressed	SW6
	VOL DOWN switch	Pressed	SW7
	VOL UP switch	Pressed	SW8
	TEL END switch	Pressed	SW9
	VR/TEL switch	Pressed	SW10
	SEEK DOWN switch	Pressed	SW11
	SEEK UP switch	Pressed	SW12
	Other than above		NO INPUT

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

The steering switch has a built-in CPU. Details for refer to Steering Switch.

CHECK FUSE

Check that the fuse is not blown:

Unit	Location	Fuse No.	Capacity
Steering switches	Fuse block (J/B)	40	10 A

Is the fuse blown?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK STEERING SWITCH POWER SUPPLY CIRCUIT

1. Ignition switch ON.

2. Check voltage between spiral cable harness connector and ground.

   (+)		(−)		Voltage (Approx.)
   Spiral cable
   Connector	Terminal
   M30	16	Ground		Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness or connector.

CHECK STEERING SWITCH GROUND CIRCUIT

1. Ignition switch OFF.

2. Disconnect spiral cable harness connector.

3. Check continuity between spiral cable harness connector and ground.

   Spiral cable		Ground	Continuity
   Connector	Terminal
   M30	15		Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair harness or connector.

CHECK STEERING SWITCH SIGNAL A CIRCUIT

1. Disconnect combination meter harness connector.

2. Check continuity between combination meter harness connector and spiral cable harness connector.

   Combination meter		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M44	33	M30	13	Yes

3. Check continuity between combination meter harness connector and ground.

   Combination meter		Ground	Continuity
   Connector	Terminal
   M44	33		No

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair harness or connector.

CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT

1. Check continuity between combination meter harness connector and spiral cable harness connector.

   Combination meter		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M44	34	M30	11	Yes

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

   Combination meter		Ground	Continuity
   Connector	Terminal
   M44	34		No

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair harness or connector.

CHECK SPIRAL CABLE

1. Disconnect spiral cable harness connectors.

2. Check continuity between spiral cable harness connectors.

Spiral cable				Continuity
Connector	Terminal	Connector	Terminal
M149	22	M30	16	Yes
	29		15
	27		13
	25		11

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Replace spiral cable. Refer to Removal and Installation.

CHECK STEERING SWITCH

Check steering switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace steering switches. Refer to Removal and Installation.

Component Inspection

CHECK STEERING SWITCH RESISTANCE

1. Ignition switch OFF.

2. Disconnect spiral cable connector M149.

3. Check resistance between the following terminals:

Spiral cable connector M149		Condition	Resistance Ω (Approx.)
Terminal	Terminal
27	25	Depress CONTROL switch.	1
		Depress switch.	51
		Depress switch.	133
		Depress OK switch.	263
		Depress LEFT/BACK switch.	653
		Depress RIGHT switch.	2123
23		Depress switch.	1
		Depress switch.	51
		Depress switch.	133
		Depress switch.	263
		Depress SEEK DOWN switch.	653
		Depress SEEK UP switch.	2123

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace steering switch. Refer to Removal and Installation.

Steering Switch Signal B Circuit Nissan Pathfinder SUV

Component Function Check

CHECK COMBINATION METER INPUT SIGNAL

CONSULT

1. Ignition switch ON.

2. Select “STRG SW INPUT” in “Data Monitor” mode of “METER/M&A”.

3. Check that the function operates normally according to the following conditions:

Monitor item	Condition		Status
STRG SW INPUT	CONTROL switch	Pressed	SW1
	Scroll dial	Rotated upward	SW2
	Scroll dial	Rotated downward	SW3
	OK switch	Pressed	SW4
	LEFT/BACK switch	Pressed	SW5
	RIGHT switch	Pressed	SW6
	VOL DOWN switch	Pressed	SW7
	VOL UP switch	Pressed	SW8
	TEL END switch	Pressed	SW9
	VR/TEL switch	Pressed	SW10
	SEEK DOWN switch	Pressed	SW11
	SEEK UP switch	Pressed	SW12
	Other than above		NO INPUT

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK STEERING SWITCH SIGNAL B CIRCUIT

1. Disconnect combination meter harness connector and spiral cable harness connector.

2. Check continuity between combination meter harness connector and spiral cable harness connector.

   Combination meter		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M44	23	M30	9	Yes

3. Check continuity between combination meter harness connector and ground.

   Combination meter		Ground	Continuity
   Connector	Terminal
   M44	23		No

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair harness or connector.

CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT

1. Check continuity between combination meter harness connector and spiral cable harness connector.

   Combination meter		Spiral cable		Continuity
   Connector	Terminal	Connector	Terminal
   M44	34	M30	11	Yes

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

   Combination meter		Ground	Continuity
   Connector	Terminal
   M44	34		No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness or connector.

CHECK SPIRAL CABLE

1. Disconnect spiral cable harness connectors.

2. Check continuity between spiral cable harness connectors.

   Spiral cable				Continuity
   Connector	Terminal	Connector	Terminal
   M149	23	M30	9	Yes
   	25		11

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace spiral cable. Refer to Removal and Installation.

CHECK STEERING SWITCH

Check steering switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace steering switches. Refer to Removal and Installation.

Component Inspection

CHECK STEERING SWITCH RESISTANCE

1. Ignition switch OFF.

2. Disconnect spiral cable connector M149.

3. Check resistance between the following terminals:

Spiral cable connector M149		Condition	Resistance Ω (Approx.)
Terminal	Terminal
27	25	Depress CONTROL switch.	1
		Depress switch.	51
		Depress switch.	133
		Depress OK switch.	263
		Depress LEFT/BACK switch.	653
		Depress RIGHT switch.	2123
23		Depress switch.	1
		Depress switch.	51
		Depress switch.	133
		Depress switch.	263
		Depress SEEK DOWN switch.	653
		Depress SEEK UP switch.	2123

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace steering switch. Refer to Removal and Installation.

Illumination Control Switch Signal Circuit Nissan Pathfinder 5th Gen

Diagnosis Procedure

CHECK COMBINATION METER INPUT SIGNAL

1. Ignition switch ON.

2. Check voltage between the following terminals of the illumination control switch.

   Illumination control switch			Condition	Voltage (Approx.)
   Connector	Terminals
   	(+)	(−)
   M113	6	4	When illumination control switch (+) is pressed	0 V
   			Other than the above	5 V
   	7		When illumination control switch (−) is pressed	0 V
   			Other than the above	5 V

Is the inspection result normal?

YES>>

Inspection End.

NO>>

GO TO 2.

CHECK ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT

1. Ignition switch OFF.

2. Disconnect combination meter harness connector and illumination control switch harness connector.

3. Check continuity between combination meter harness connector and illumination control switch harness connector.

   Combination meter		Illumination control switch		Continuity
   Connector	Terminal	Connector	Terminal
   M44	32	M113	4	Yes
   	31		7
   	25		6

4. Check continuity between combination meter harness connector and ground.

   Combination meter		—	Continuity
   Connector	Terminal
   M44	32	Ground	No
   	31
   	25

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK ILLUMINATION CONTROL SWITCH

Check illumination control switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace combination meter. Refer to Removal and Installation.

NO>>

Replace illumination control switch. Refer to Removal and Installation.

Component Inspection

CHECK ILLUMINATION CONTROL SWITCH

1. Ignition switch OFF.

2. Disconnect illumination control switch harness connector.

3. Check continuity between the following terminals of the illumination control switch:

   Illumination control switch		Condition	Continuity
   Terminals
   6	4	When illumination control switch (+) is pressed	Yes
   		Other than the above	No
   7		When illumination control switch (−) is pressed	Yes
   		Other than the above	No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace illumination control switch. Refer to Removal and Installation.

Fuel Level Sensor Signal Circuit Nissan Pathfinder

Diagnosis Procedure

CHECK HARNESS CONNECTOR

1. Ignition switch OFF.

2. Check combination meter and fuel level sensor unit and fuel pump (fuel level sensor) terminals (meter-side and harness-side) for poor connection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness or connector.

CHECK FUEL LEVEL SENSOR UNIT CIRCUIT

1. Disconnect combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) harness connector.

2. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) harness connector.

   Combination meter		Fuel level sensor unit and fuel pump (fuel level sensor)		Continuity
   Connector	Terminal	Connector	Terminal
   M44	35	B57	3	Yes

3. Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector and ground.

   Fuel level sensor unit and fuel pump (fuel level sensor)		—	Continuity
   Connector	Terminal
   B57	3	Ground	No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK FUEL LEVEL SENSOR GROUND CIRCUIT

1. Check continuity between combination meter harness connector and fuel level sensor unit and fuel pump (fuel level sensor) harness connector.

   Combination meter		Fuel level sensor unit and fuel pump (fuel level sensor)		Continuity
   Connector	Terminal	Connector	Terminal
   M44	36	B57	2	Yes

2. Check continuity between fuel level sensor unit and fuel pump (fuel level sensor) harness connector and ground.

   Fuel level sensor unit and fuel pump (fuel level sensor)		—	Continuity
   Connector	Terminal
   B57	2	Ground	No

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness or connector.

CHECK INSTALLATION CONDITION

Check fuel level sensor unit installation, and verify the float arm does not interfere or bind with the internal components in the fuel tank.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Install the fuel level sensor unit and fuel pump (fuel level sensor) properly. Refer to Removal and Installation.

Component Inspection

CHECK FUEL LEVEL SENSOR UNIT AND FUEL PUMP (FUEL LEVEL SENSOR)

1. Remove the fuel level sensor unit and fuel pump (fuel level sensor). Refer to Removal and Installation.

2. Check the resistance between fuel level sensor unit and fuel pump (fuel level sensor) terminals.

   

   Fuel level sensor unit and fuel pump (fuel level sensor)		Condition	Resistance (Ω) (Approx.)	Height [in (mm)]
   Terminals
   2	3	Full* (A)	91	5.95 (151.2)
   		Empty* (B)	283.0	0.39 (10.1)

   *: When float rod is contact with stopper.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace fuel level sensor unit and fuel pump (fuel level sensor). Refer to Removal and Installation.

Ambient Sensor Signal Circuit Nissan Pathfinder R53

Diagnosis Procedure

CHECK AMBIENT SENSOR POWER SUPPLY

1. Ignition switch OFF.

2. Disconnect ambient sensor harness connector.

3. Ignition switch ON.

4. Check voltage between ambient sensor harness connector and ground.

   (+)		(–)		Voltage (Approx.)
   Ambient sensor
   Connector	Terminal
   E206	1	Ground		5 V

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

GO TO 4.

CHECK AMBIENT SENSOR GROUND CIRCUIT

1. Ignition switch OFF.

2. Check continuity between ambient sensor harness connector and ground.

   Ambient sensor		—		Continuity
   Connector	Terminal
   E206	2	Ground		Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness or connector.

CHECK AMBIENT SENSOR

Check ambient sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace combination meter. Refer to Removal and Installation.

NO>>

Replace ambient sensor. Refer to Removal and Installation.

CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN

1. Ignition switch OFF.

2. Disconnect combination meter harness connector.

3. Check continuity between ambient sensor harness connector and combination meter harness connector.

   Ambient sensor		Combination meter		Continuity
   Connector	Terminal	Connector	Terminal
   E206	1	M44	29	Yes

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness or connector.

CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT

Check continuity between ambient sensor harness connector and ground.

Ambient sensor		—		Continuity
Connector	Terminal
E206	1	Ground		No

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness or connector.

CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR POWER SHORT

1. Ignition switch ON.

2. Check voltage between ambient sensor harness connector and ground.

   (+)		(–)		Voltage (Approx.)
   Ambient sensor
   Connector	Terminal
   E206	1	Ground		0 V

Is the inspection result normal?

YES>>

Replace combination meter. Refer to Removal and Installation.

NO>>

Repair or replace harness or connector.

Component Inspection

CHECK AMBIENT SENSOR

1. Ignition switch OFF.

2. Disconnect ambient sensor connector.

3. Check resistance between ambient sensor terminals.

   Terminals		Condition	Resistance: kΩ
   		Temperature: °C (°F)
   1	2	−20 (−4)	16.50
   		−10 (14)	9.92
   		0 (32)	6.19
   		10 (50)	3.99
   		20 (68)	2.65
   		25 (77)	2.19
   		30 (86)	1.81
   		40 (104)	1.27

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace ambient sensor. Refer to Removal and Installation.

Head up Display Switch Signal Circuit Nissan Pathfinder 2025

Component Inspection

CHECK HEAD UP DISPLAY SWITCH

1. Ignition switch OFF.

2. Disconnect head up display switch connector.

3. Check head up display switch.

   Head up display switch		Condition	Continuity
   Terminals
   6	8	When the head up display switch is pressed	Yes
   		Other than above	No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace head up display switch. Refer to Removal and Installation.

Washer Fluid Level Switch Circuit Nissan Pathfinder Fifth generation

Diagnosis Procedure

CHECK WASHER FLUID LEVEL SWITCH SIGNAL CIRCUIT

1. Ignition switch OFF.

2. Disconnect combination meter harness connector and washer fluid level switch harness connector.

3. Check continuity between combination meter harness connector and washer fluid level switch harness connector.

   Combination meter		Washer fluid level switch		Continuity
   Connector	Terminal	Connector	Terminal
   M44	15	E208	2	Yes

4. Check continuity between combination meter harness connector and ground.

   Combination meter		—	Continuity
   Connector	Terminal
   M44	15	Ground	No

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness or connectors.

CHECK WASHER FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between washer fluid level switch harness connector and ground.

Washer fluid level switch		—	Continuity
Connector	Terminal
E208	1	Ground	Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness or connectors.

Component Inspection

CHECK WASHER FLUID LEVEL SWITCH

1. Ignition switch OFF.

2. Disconnect washer fluid level switch connector.

3. Check washer fluid level switch.

   Washer fluid level switch		Condition	Continuity
   Terminals
   1	2	Washer fluid level switch ON	Yes
   		Washer fluid level switch OFF	No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace washer fluid level switch. Refer to Removal and Installation.