Nissan Pathfinder: Wiper & Washer - Dtc/circuit Diagnosis

• B20b2-72 Front Wiper Motor Circuit
• B2cb4-49 Rain Sensor
• B2cb5-64 Rear Wiper
• Front Wiper Motor Lo Circuit
• Front Wiper Auto Stop Position Signal Circuit
• Front Wiper Motor Ground Circuit
• Rear Wiper Motor Circuit
• Rear Wiper Stop Position Signal Circuit
• Washer Switch Circuit
• Washer Switch
• Rain Sensor

B20b2-72 Front Wiper Motor Circuit Nissan Pathfinder 5th Gen

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT display description (Trouble diagnosis content)		DTC detection condition
B20B2–72	Front wiper motor circuit	[ACTUATOR STUCK OPEN]	Diagnosis condition	Ignition switch is ON.
			Signal (terminal)	Monitors the status of front wiper relay side with CPU of IPDM E/R.
			Threshold	Detection of front wiper relay OFF.
			Diagnosis delay time	1 second or more.

POSSIBLE CAUSE

• Harness or connector

  (The front wiper motor circuit is open or shorted)

• IPDM E/R

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “IPDM E/R”.

Is any DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK FUSE

1. Ignition switch OFF.

2. Check that the following fuse is not blown (open):

Signal name	Fuse No.	Capacity
Battery voltage	77	30 A

Is the fuse blown (open)?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK IPDM E/R POWER SUPPLY AND GROUND CIRCUIT

Check IPDM E/R power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning part.

REPLACE IPDM E/R

Replace IPDM E/R. Refer to Removal and Installation.

>>

Inspection End.

B2cb4-49 Rain Sensor Nissan Pathfinder Fifth generation

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
B2CB4–49	Rain sensor (Rain sensor)	Diagnosis condition	Ignition switch is ON.
		Signal (terminal)	—
		Threshold	Rain sensor internal malfunction.
		Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

Rain sensor

FAIL SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

1. Ignition switch ON.

2. Select “Self Diagnostic Result” mode of “BCM”.

3. Check DTC.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

REPLACE RAIN SENSOR

Replace rain sensor. Refer to Removal and Installation.

>>

Inspection End.

B2cb5-64 Rear Wiper Nissan Pathfinder

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items (Trouble diagnosis content)	DTC Detection Condition
B2CB5–64	Rear wiper (Rear wiper)	Diagnosis condition	Ignition switch is ON.
		Signal (terminal)	Rear wiper stop position signal
		Threshold	Rear wiper stop position signal malfunction status between Rear wiper and BCM
		Diagnosis delay time	Does not change for more than 5 seconds

POSSIBLE CAUSE

• Harness or connector (Rear wiper stop position circuit is open or shorted)

• Rear wiper motor

• BCM

FAIL-SAFE

Stop rear wiper power supply for 1 min

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

1. Erase DTC.

2. Ignition switch ON.

3. Rear wiper switch ON.

4. Select “Self Diagnostic Result” mode of “BCM”, when 5 seconds or more have passed.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO>>

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

NO>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

CHECK REAR WIPER MOTOR OUTPUT VOLTAGE

1. Ignition switch OFF.

2. Disconnect rear wiper motor connector.

3. Ignition switch ON.

4. Check voltage between rear wiper motor harness connector and ground.

(+)		(−)	Voltage (Approx.)
Rear wiper motor
Connector	Terminal
D553	1	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK REAR WIPER MOTOR CIRCUIT

1. Ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and rear wiper motor harness connector.

   BCM		Rear wiper motor		Continuity
   Connector	Terminal	Connector	Terminal
   B45	148	D553	1	Yes

4. Check continuity between BCM harness connector and ground.

   BCM		(−)	Continuity
   Connector	Terminal
   B45	148	Ground	No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK REAR WIPER MOTOR GROUND OPEN CIRCUIT

1. Ignition switch OFF.

2. Check continuity between rear wiper motor harness connector and ground.

Rear wiper motor		(−)	Continuity
Connector	Terminal
D553	3	Ground	Yes

Is the inspection result normal?

YES>>

Replace rear wiper motor. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Front Wiper Motor Lo Circuit Nissan Pathfinder 2022

Component Function Check

CHECK FRONT WIPER LO OPERATION

CONSULT

1. Select “FRONT WIPER” in "Active Test" mode of “IPDM E/R”.

2. With operating the test item, check front wiper operation.

   Low	: Front wiper (LO) operation
   Off	: Stop the front wiper

Is the inspection result normal?

YES>>

Front wiper motor LO circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE

1. Ignition switch OFF.

2. Disconnect front wiper motor connector.

3. Ignition switch ON.

4. Turn front wiper switch to LOW.

5. Check voltage between front wiper motor harness connector and ground.

(+)		(−)	Condition		Voltage (Approx.)
Front wiper motor
Connector	Terminal
E23	4	Ground	Front wiper switch	Lo	Battery voltage (10 seconds*)

*: According to front wiper protection function, IPDM E/R supplies voltage for 10 seconds (battery voltage) and then stops for 20 seconds (0 V). This operation occurs repeatedly.

Is the inspection result normal?

YES>>

Replace front wiper motor. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK FRONT WIPER MOTOR (LO) CIRCUIT

1. Ignition switch OFF.

2. Disconnect IPDM E/R connector.

3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.

   IPDM E/R		Front wiper motor		Continuity
   Connector	Terminal	Connector	Terminal
   E121	48	E23	4	Yes

4. Check continuity between IPDM E/R harness connector and ground.

   IPDM E/R		—	Continuity
   Connector	Terminal
   E121	48	Ground	No

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Front Wiper Auto Stop Position Signal Circuit Nissan Pathfinder 2025

Component Function Check

CHECK FRONT WIPER AUTO STOP POSITION SIGNAL

CONSULT

1. Select “FR WIPER STOP POSITION” in "Data Monitor" mode of “IPDM E/R”.

2. Operate the front wiper.

3. With the front wiper operation, check the monitor status.

   Monitor item	Condition		Monitor status
   FR WIPER STOP POSITION	Front wiper motor	Front wiper stop position	Stop P
   		Any position other than front wiper stop position	Active

Is the inspection result normal?

YES>>

Front wiper stop position signal circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK IPDM E/R OUTPUT VOLTAGE

1. Ignition switch OFF.

2. Disconnect front wiper motor connector.

3. Ignition switch ON.

4. Check voltage between front wiper motor harness connector and ground.

(+)		(−)	Voltage (Approx.)
Front wiper motor
Connector	Terminal
E23	2	Ground	Battery voltage

Is the inspection result normal?

YES>>

Replace front wiper motor. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK FRONT WIPER MOTOR (AUTO STOP) CIRCUIT

1. Ignition switch OFF.

2. Disconnect IPDM E/R connector.

3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.

   IPDM E/R		Front wiper motor		Continuity
   Connector	Terminal	Connector	Terminal
   E119	33	E23	2	Yes

4. Check continuity between IPDM E/R harness connector and ground.

   IPDM E/R		—	Continuity
   Connector	Terminal
   E119	33	Ground	No

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Front Wiper Motor Ground Circuit Nissan Pathfinder SUV

Diagnosis Procedure

CHECK FRONT WIPER MOTOR GROUND CIRCUIT

1. Ignition switch OFF.

2. Disconnect front wiper motor connector.

3. Check continuity between front wiper motor harness connector and ground.

Front wiper motor		—	Continuity
Connector	Terminal
E23	1	Ground	Yes

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness.

Rear Wiper Motor Circuit Nissan Pathfinder SUV

Component Function Check

CHECK REAR WIPER OPERATION

CONSULT

1. Select “Rear wiper” in "Active Test" mode of "BCM(WIPER)".

2. With operating the test item, check rear wiper operation.

   On	: Rear wiper operation
   Off	: Stop the rear wiper

Is the inspection result normal?

YES>>

Rear wiper motor circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK REAR WIPER MOTOR OUTPUT VOLTAGE

1. Ignition switch OFF.

2. Disconnect rear wiper motor connector.

3. Ignition switch ON.

4. Turn the rear wiper switch ON.

5. Check voltage between rear wiper motor harness connector and ground.

(+)		(−)	Condition		Voltage (Approx.)
Rear wiper motor
Connector	Terminal
D553	1	Ground	Rear wiper switch	ON	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK REAR WIPER MOTOR CIRCUIT

1. Ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and rear wiper motor harness connector.

   BCM		Rear wiper motor		Continuity
   Connector	Terminal	Connector	Terminal
   B45	148	D553	1	Yes

4. Check continuity between BCM harness connector and ground.

   BCM		(−)	Continuity
   Connector	Terminal
   B45	148	Ground	No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK REAR WIPER MOTOR GROUND OPEN CIRCUIT

1. Ignition switch OFF.

2. Check continuity between rear wiper motor harness connector and ground.

Rear wiper motor		(−)	Continuity
Connector	Terminal
D553	3	Ground	Yes

Is the inspection result normal?

YES>>

Replace rear wiper motor. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Rear Wiper Stop Position Signal Circuit Nissan Pathfinder

Component Function Check

CHECK REAR WIPER STOP POSITION SIGNAL

CONSULT

1. Select “Rear wiper auto stop switch” in "Data Monitor" mode of "BCM(WIPER)".

2. Operate the rear wiper.

3. Check that “Rear wiper auto stop switch” changes to “On” and “Off” linked with the wiper operation.

   Monitor item	Condition		Monitor status
   Rear wiper auto stop switch	Rear wiper motor	Rear wiper stop position	On
   		Any position other than rear wiper stop position	Off

Is the inspection result normal?

YES>>

Rear wiper stop position signal circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK REAR WIPER MOTOR (STOP POSITION) OUTPUT VOLTAGE

1. Ignition switch OFF.

2. Disconnect rear wiper motor connector.

3. Ignition switch ON.

4. Check voltage between rear wiper motor harness connector and ground.

(+)		(−)	Voltage (Approx.)
Rear wiper motor
Connector	Terminal
D553	2	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3

NO>>

GO TO 2.

CHECK REAR WIPER MOTOR (STOP POSITION) CIRCUIT

1. Ignition switch OFF.

2. Disconnect BCM connector.

3. Check continuity between BCM harness connector and rear wiper motor harness connector.

   BCM		Rear wiper motor		Continuity
   Connector	Terminal	Connector	Terminal
   B59	103	D553	2	Yes

4. Check continuity between BCM harness connector and ground.

   BCM		—	Continuity
   Connector	Terminal
   B59	103	Ground	No

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK REAR WIPER MOTOR GROUND OPEN CIRCUIT

1. Ignition switch OFF.

2. Check continuity between rear wiper motor harness connector and ground.

Rear wiper motor		—	Continuity
Connector	Terminal
D553	3	Ground	Yes

Is the inspection result normal?

YES>>

Replace rear wiper motor. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Washer Switch Circuit Nissan Pathfinder 2025

Component Function Check

CHECK FRONT AND REAR WASHER OPERATION

When the front or rear washer switch is turned to the ON position the front and rear washers should operate.

Is front and rear washer operation normal?

YES>>

Washer switch circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

WASHER SWITCH INSPECTION

Check washer switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace the malfunctioning part.

CHECK FRONT AND REAR WASHER MOTOR FUSE

1. Ignition switch OFF.

2. Check that the following fuse is not blown (open):

Location	Fuse No.	Capacity
Fuse block (J/B)	60	10 A

Is the fuse blown (open)?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 3.

CHECK FRONT AND REAR WASHER MOTOR POWER SUPPLY CIRCUIT

1. Disconnect combination switch (wiper and washer switch) connector.

2. Ignition switch ON.

3. Check voltage between combination switch (wiper and washer switch) harness connector and ground.

(+)		(−)	Voltage (Approx.)
Combination switch (wiper and washer switch)
Connector	Terminal
M28	11	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK FRONT AND REAR WASHER MOTOR GROUND CIRCUIT

1. Ignition switch OFF.

2. Check continuity between combination switch (wiper and washer switch) harness connector and ground.

   Combination switch (wiper and washer switch)		—	Continuity
   Connector	Terminal
   M28	9	Ground	Yes

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness.

CHECK FRONT AND REAR WASHER MOTOR CIRCUITS

1. Disconnect front and rear washer motor connector.

2. Check continuity between front and rear washer motor harness connector and combination switch (wiper and washer switch) harness connector.

   Front and rear washer motor		Combination switch (wiper and washer switch)		Continuity
   Connector	Terminal	Connector	Terminal
   E224	1	M28	16	Yes
   	2		14

3. Check continuity between front and rear washer motor harness connector and ground.

   Front and rear washer motor		—	Continuity
   Connector	Terminal
   E224	1	Ground	No
   	2

Is the inspection result normal?

YES>>

Replace front and rear washer motor. Refer to Removal and Installation.

NO>>

Repair or replace harness.

Washer Switch Nissan Pathfinder 2025

Description

• Washer switch is integrated with the combination switch.

• Washer switch switches polarity between front and rear washer operation to supply power and ground to the front and rear washer motor.

  

Component Inspection

CHECK FRONT WASHER SWITCH

1. Ignition switch OFF.

2. Disconnect combination switch (wiper and washer switch) connector.

3. Check continuity between the combination switch (wiper and washer switch) terminals.

   A: Terminal 11
   B: Terminal 9
   C: Terminal 14
   D: Terminal 16

Combination switch (wiper and washer switch)		Condition	Continuity
Terminals
11	14	Front washer switch ON	Yes
9	16

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace combination switch (wiper and washer switch). Refer to Removal and Installation.

CHECK REAR WASHER SWITCH

Check continuity between the combination switch (wiper and washer switch) terminals.

A: Terminal 11
B: Terminal 9
C: Terminal 14
D: Terminal 16

Combination switch (wiper and washer switch)		Condition	Continuity
Terminals
11	16	Rear washer switch ON	Yes
9	14

Is the inspection result normal?

YES>>

Combination switch (wiper and washer switch) is normal.

NO>>

Replace combination switch (wiper and washer switch). Refer to Removal and Installation.

Rain Sensor Nissan Pathfinder

Component Function Check

CHECK FRONT WIPER AUTO OPERATION

1. Clean the rain sensor detection area of windshield fully.

2. When the front wiper switch is turned to AUTO position, front wiper operates once regardless of a rainy condition.

Is front wiper (AUTO) operation normal?

YES>>

Rain sensor is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FUSE

1. Ignition switch OFF.

2. Check that the following fuse is not blown (open):

   Location	Fuse No.	Capacity
   Fuse block (J/B)	41	10 A

Is the fuse blown (open)?

YES>>

Replace the blown fuse after repairing the affected circuit.

NO>>

GO TO 2.

CHECK RAIN SENSOR POWER SUPPLY

1. Disconnect rain sensor connector.

2. Ignition switch ON.

3. Check voltage between rain sensor harness connector and ground.

   (+)		(−)	Voltage (Approx.)
   Rain sensor
   Connector	Terminal
   R7	1	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harnesses.

CHECK RAIN SENSOR GROUND CIRCUIT

1. Ignition switch OFF.

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

   Rain sensor		(−)	Continuity
   Connector	Terminal
   R7	3	Ground	Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK RAIN SENSOR LIN CIRCUIT

1. Disconnect BCM connector.

2. Check continuity between BCM harness connector and rain sensor harness connector.

   BCM		Rain sensor		Continuity
   Connector	Terminal	Connector	Terminal
   M18	25	R7	2	Yes

3. Check continuity between rain sensor harness connector and ground.

   Rain sensor		(−)	Continuity
   Connector	Terminal
   R7	2	Ground	No

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness.

CHECK BCM LIN CIRCUIT

1. Connect BCM connector.

2. Ignition switch ON.

3. Check voltage between BCM harness connector and ground.

   (+)		(−)	Voltage (Approx.)
   BCM
   Connector	Terminal
   M18	25	Ground	Refer to Reference Value.

Is the inspection result normal?

YES>>

Replace rain sensor. Refer to Removal and Installation.

NO>>

Replace BCM. Refer to Removal and Installation.