Nissan Sentra B18 (2020-2025) Service Manual / Driver Controls / Wiper & Washer :: Dtc/circuit Diagnosis

Nissan Sentra B18 (2020-2025) Service Manual: Wiper & Washer :: Dtc/circuit Diagnosis

Front Wiper Motor Hi Circuit. Component Function Check

Component Function Check

CHECK FRONT WIPER HI OPERATION

CONSULT

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

With operating the test item, check front wiper operation.

High	: Front wiper (HI) operation
Off	: Stop the front wiper

Is the inspection result normal?

YES>>

Front wiper motor HI circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE

CONSULT

Ignition switch OFF.
Disconnect front wiper motor connector.
Ignition switch ON.
Select “FRONT WIPER” in "Active Test" mode of “IPDM E/R”.
With operating the test item, check voltage between front wiper motor harness connector and ground.

(+)	(−)	Condition	Voltage (Approx.)
E1	4	Ground	FRONT WIPER	High	Battery voltage (10 seconds*)

(+)

(−)

Condition

Voltage

(Approx.)

Front wiper motor

Connector

Terminal

Ground

FRONT WIPER

High

Battery voltage

(10 seconds*)

*: According to front wiper protection function, the IPDM E/R supplies voltage for 10 seconds (9 − 16 V) and then stops for 20 seconds (0 − 1 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 (HI) CIRCUIT

Ignition switch OFF.
Disconnect IPDM E/R connector.

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	Continuity
E45	45	E1	4	Yes

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

IPDM E/R		(−)	Continuity
Connector	Terminal	(−)	Continuity
E45	45	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 Lo Circuit. Component Function Check

Component Function Check

CHECK FRONT WIPER LO OPERATION

CONSULT

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

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

Ignition switch OFF.
Disconnect front wiper motor connector.
Ignition switch ON.
Select “FRONT WIPER” in "Active Test" mode of “IPDM E/R”.
With operating the test item, check voltage between front wiper motor harness connector and ground.

(+)	(−)	Condition	Voltage (Approx.)
E1	1	Ground	FRONT WIPER	Low	Battery voltage (10 seconds*)

(+)

(−)

Condition

Voltage

(Approx.)

Front wiper motor

Connector

Terminal

Ground

FRONT WIPER

Low

Battery voltage

(10 seconds*)

*: According to front wiper protection function, the IPDM E/R supplies voltage for 10 seconds (9 − 16 V) and then stops for 20 seconds (0 − 1 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

Ignition switch OFF.
Disconnect IPDM E/R connector.

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	Continuity
E45	48	E1	1	Yes

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

IPDM E/R		(−)	Continuity
Connector	Terminal	(−)	Continuity
E45	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 Signal Circuit. Component Function Check

Component Function Check

CHECK FRONT WIPER AUTO STOP SIGNAL

CONSULT

Select “FR WIPER STOP POSITION” in "Data Monitor" mode of “IPDM E/R”.
Operate the front wiper.

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
FR WIPER STOP POSITION	Front wiper motor	Any position other than front wiper stop position	ACTIVE P

Is the inspection result normal?

YES>>

Front wiper auto stop signal circuit is normal.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK IPDM E/R OUTPUT VOLTAGE

Ignition switch OFF.
Disconnect front wiper motor connector.
Ignition switch ON.
Check voltage between front wiper motor harness connector and ground.

(+)	(−)	Voltage (Approx.)
E1	5	Ground	Battery voltage

(+)

(−)

Voltage

(Approx.)

Front wiper motor

Connector

Terminal

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

Ignition switch OFF.
Disconnect IPDM E/R connector.

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	Continuity
E43	33	E1	5	Yes

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

IPDM E/R		(−)	Continuity
Connector	Terminal	(−)	Continuity
E43	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. Diagnosis Procedure. Diagnosis Procedure

Diagnosis Procedure

CHECK FRONT WIPER MOTOR GROUND CIRCUIT

Ignition switch OFF.
Disconnect front wiper motor connector.
Check continuity between front wiper motor harness connector and ground.

Front wiper motor		(–)	Continuity
Connector	Terminal	(–)	Continuity
E1	2	Ground	Yes

Is the inspection result normal?

YES >>

Inspection End.

NO >>

Repair or replace harness.

Front Washer Motor Circuit. Diagnosis Procedure. Diagnosis Procedure

Diagnosis Procedure

CHECK FRONT WASHER MOTOR FUSE

Ignition switch OFF.
Check that the following fuse is not blown:

Unit	Location	Fuse No.	Capacity
Front washer motor	Fuse block (J/B)	45	10 A

Is the fuse blown?

YES >>

Replace the blown fuse after repairing the affected circuit.

NO >>

GO TO 2.

CHECK FRONT WASHER MOTOR POWER SUPPLY

Disconnect front washer motor.
Ignition switch ON.
Check voltage between front washer motor harness connector and ground.

(+)	(–)	Voltage (Approx.)
E8	1	Ground	Battery voltage

(+)

(–)

Voltage

(Approx.)

Front washer motor

Connector

Terminal

Ground

Battery voltage

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

Repair or replace the harness or connectors.

CHECK FRONT WASHER MOTOR CIRCUIT CONTINUITY

Ignition switch OFF.
Disconnect combination switch (wiper and washer switch) connector.
Check continuity between combination switch (wiper and washer switch) harness connector and front washer motor harness connector.

Combination switch (wiper and washer switch)		Front washer motor		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M28	16	E8	2	Yes

Is the inspection result normal?

YES >>

GO TO 4.

NO >>

Repair or replace the harness or connectors.

CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH) GROUND CIRCUIT

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

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

Is the inspection result normal?

YES >>

GO TO 5.

NO >>

Repair or replace the harness or connectors.

CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH)
1. Check combination switch (wiper and washer switch). Refer to Component Inspection.
Is the inspection result normal?
YES >>
Replace front washer motor. Refer to Removal and Installation.
NO >>
Replace combination switch (wiper and washer switch). Refer to Removal and Installation.

Washer Switch. Component Inspection. Component Inspection

Component Inspection

CHECK WASHER SWITCH

Ignition switch OFF.
Disconnect combination switch (wiper and washer switch) connector.
Check continuity between the combination switch (wiper and washer switch) terminals.

Combination switch (wiper and washer switch)		Condition	Continuity
Terminals		Condition	Continuity
16	9	Front washer switch ON	Yes
16	9	Front washer switch OFF	No

Is the inspection result normal?

YES >>

Inspection End.

NO >>

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

 Wiper & Washer. Basic Inspection. Diagnosis and Repair Work Flow. Work Flow

Diagnosis and Repair Work Flow. Work Flow Work Flow Work Flow OVERALL SEQUENCE DETAILED FLOW GET INFORMATION FOR SYMPTOM Get detailed information from the customer about the sym...

 Wiper & Washer. Symptom Diagnosis

Wiper and Washer System Symptoms. Symptom Table Symptom Table Symptom Table Note: Perform the self-diagnosis with CONSULT before the symptom diagnosis. Perform the trouble diagn...

Other materials:

Forward-facing child restraint installation using the seat belts
WARNING The three-point seat belt with Automatic Locking Retractor (ALR) must always be used when installing a child restraint in the Nissan Sentra. Failure to activate and use the ALR mode will prevent the child restraint from being properly secured. An unsecured or unstable restraint may tip ...

Ecu Diagnosis Information. Bcm, Combination Meter, Ecm, Tcm
Bcm, Combination Meter, Ecm, Tcm List of Ecu Reference List of ECU Reference ECU Reference ECM Values On The Diagnosis Tool ...

Steering Switches
Diagnosis Procedure Diagnosis Procedure CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE Ignition switch OFF. Disconnect combination switch connector. ...