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
.
Diagnosis Procedure
INFOID:0000000010585749
Regarding Wiring Diagram information, refer to
.
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
.
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (HI) circuit.
Refer to
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
.
• IPDM E/R
• Harness between IPDM E/R and front wiper
motor
• Front wiper motor
Front wiper motor (LO) cir-
cuit.
Refer to
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
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R.
Data monitor “FR WIP REQ”.
HI, LO and INT
SYMPTOM DIAGNOSIS.
Refer to
Front wiper does not
stop
HI only
• Combination switch
• BCM
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R.
Data monitor “FR WIP REQ”.
IPDM E/R.
—
LO only
• Combination switch
• BCM
.
Front wiper request signal
• BCM
• IPDM E/R
IPDM E/R.
Data monitor “FR WIP REQ”.
IPDM E/R.
—
INT only
• Combination switch
• BCM
.
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
.
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
.
Wiper is not linked to
the washer operation
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch.
Refer to
.
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
Rear wiper does not
operate
ON only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch.
Refer to
.
INT only
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch.
Refer to
.
ON and INT
• Combination switch
• Harness between combination switch and BCM
• BCM
Combination switch.
Refer to
.
• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor
Rear wiper motor circuit.
Refer to
Rear wiper does not
stop
ON only
• Combination switch
• BCM
Combination switch.
Refer to
.
INT only
• Combination switch
• BCM
Combination switch.
Refer to
.
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
.
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
Symptom
Probable malfunction location
Inspection item
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