Nissan Leaf. Manual - part 1302

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< DTC/CIRCUIT DIAGNOSIS >

REAR WIPER MOTOR CIRCUIT

Check continuity between rear wiper motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace rear wiper motor. Refer to 

WW-58, "Removal and Installation"

.

NO

>> Repair or replace harness.

Rear wiper motor

Ground

Continuity

Connector

Terminal

D554

4

Yes

REAR WIPER STOP POSITION SIGNAL CIRCUIT

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< DTC/CIRCUIT DIAGNOSIS >

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REAR WIPER STOP POSITION SIGNAL CIRCUIT

Component Function Check

INFOID:0000000010585748

1.

CHECK REAR WIPER STOP POSITION SIGNAL

1. Select WIPER of BCM data monitor item.

2. Operate the rear wiper.

3. Check that RR WIPER STOP changes to On and Off linked with the wiper operation.

Is the inspection result normal?

YES

>> Rear wiper stop position signal circuit is normal.

NO

>> Refer to 

WW-37, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010585749

Regarding Wiring Diagram information, refer to 

WW-19, "Wiring Diagram"

.

1.

CHECK BCM OUTPUT VOLTAGE

1. Turn ignition switch OFF.

2. Disconnect rear wiper motor connector.

3. Turn ignition switch ON.

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

Is the inspection result normal?

YES

>> Replace rear wiper motor.

NO

>> GO TO 2.

2.

CHECK REAR WIPER STOP POSITION SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector.

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

4. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-72, "Removal and Installation"

.

NO

>> Repair or replace harness.

Monitor item

Condition

Monitor status

RR WIPER STOP

Rear wiper motor

Stop position

On

Except stop position

Off

(+)

(

−)

Voltage 

(Approx.)

Rear wiper motor

Connector

Terminal

D554

3

Ground

Battery voltage

BCM 

Rear wiper motor

Continuity

Connector

Terminal

Connector

Terminal

M29

44

D554

3

Yes

BCM

Ground

Continuity

Connector

Terminal

M29

44

No

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< SYMPTOM DIAGNOSIS >

WIPER AND WASHER SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

WIPER AND WASHER SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000010122223

Symptom

Probable malfunction location

Inspection item

Front wiper does not 
operate

HI only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch. 
Refer to 

BCS-71, "Symptom 

Table"

.

• IPDM  E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper motor (HI) circuit.
Refer to 

WW-30, "Compo-

nent Function Check"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

LO and INT

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

• IPDM  E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper motor (LO) cir-
cuit.
Refer to 

WW-29, "Compo-

nent Function Check"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

INT only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

HI, LO and INT

SYMPTOM DIAGNOSIS.
Refer to 

WW-41, "Diagnosis Procedure"

.

Front wiper does not 
stop

HI only

• Combination switch
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

IPDM E/R.

—

LO only

• Combination switch
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

IPDM E/R.

—

INT only

• Combination switch
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM  E/R

IPDM E/R.
Data monitor “FR WIP REQ”.

WIPER AND WASHER SYSTEM SYMPTOMS

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< SYMPTOM DIAGNOSIS >

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Front wiper does not 
operate normally

Intermittent adjust-
ment cannot be per-
formed

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

BCM.

—

Intermittent control 
linked with vehicle 
speed cannot be per-
formed

Check the wiper setting is linked with vehicle speed..
Refer to 

BCS-18, "WIPER : CONSULT Function - WIPER"

.

Service positioning 
operation does not 
operate

• Combination switch
• BCM
• IPDM E/R

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Wiper is not linked to 
the washer operation

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

BCM.

—

Does not return to 
stop position [Re-
peatedly operates for 
10 seconds and then 
stops for 20 seconds. 
After that, it stops the 
operation. (Fail-
safe)]

• IPDM E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper stop position sig-
nal circuit.
Refer to 

WW-31, "Compo-

nent Function Check"

.

Rear wiper does not 
operate

ON only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

INT only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

ON and INT

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor

Rear wiper motor circuit.
Refer to 

WW-35, "Compo-

nent Function Check"

.

Rear wiper does not 
stop

ON only

• Combination switch
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

INT only

• Combination switch
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

Rear wiper does not 
operate normally

Wiper is not linked to 
the washer operation

• Combination switch
• Harness between rear wiper motor and BCM
• BCM

Combination switch.
Refer to 

BCS-71, "Symptom 

Table"

.

BCM.

—

Rear wiper does not 
return to the stop po-
sition. [Stops after a 
five-second opera-
tion. (Fail-safe)]

• BCM
• Harness between rear wiper motor and BCM
• Rear wiper motor

Rear wiper stop position sig-
nal circuit.
Refer to 

WW-37, "Compo-

nent Function Check"

.

Symptom

Probable malfunction location

Inspection item