Nissan Leaf. Manual — part 373
![](/vehicles/gon/gut/gevermery/listam.png)
DEF-26
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
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.
3.
CHECK REAR WINDOW DEFOGGER SWITCH GROUND CIRCUIT
Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES
>> Replace A/C auto amp. Refer to
HAC-187, "Removal and Installation"
(auto A/C with heat pump)
or
HAC-347, "Removal and Installation"
NO
>> Repair or replace harness.
BCM
Ground
Continuity
Connector
Terminal
M24
15
Ground
No
A/C auto amp.
Ground
Continuity
Connector
Terminal
M55
10
Ground
Yes
![](/vehicles/gon/gut/gevermery/prolothe.png)
REAR WINDOW DEFOGGER RELAY
DEF-27
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
REAR WINDOW DEFOGGER RELAY
Component Function Check
INFOID:0000000010119497
1.
CHECK FUNCTION
With CONSULT
1. Select “REAR DEFOGGER” in “Active Test” of “IPDM E/R” using CONSULT.
2. Touch “On”.
3. Check that the rear window heating wire is getting warmer.
Is the inspection result normal?
YES
>> Rear window defogger relay function is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010119498
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE
1. Turn power switch OFF.
2. Check that the following fuse is not blown.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
CHECK IPDM E/R OUTPUT SIGNAL
1. Turn power switch ON.
2. Check voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-53, "Intermittent Incident"
.
NO
>> Replace IPDM E/R. Refer to
PCS-29, "Removal and Installation"
.
Location
Fuse No.
Capacity
IPDM E/R
41
15A
42
(+)
(-)
Condition
Voltage (V)
(Approx.)
IPDM E/R
Connector
Terminal
E11
14
Ground
Rear window defogger switch
ON
Battery voltage
OFF
0
![](/vehicles/gon/gut/gevermery/jacour.png)
DEF-28
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER
Component Function Check
INFOID:0000000010119499
1.
CHECK FUNCTION
With CONSULT
1. Select “REAR DEFOGGER” in “Active Test” of “IPDM E/R” using CONSULT.
2. Touch “On”.
3. Check that the rear window heating wire is getting warmer.
Is the inspection result normal?
YES
>> Rear window defogger is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010119500
Regarding Wiring Diagram information, refer to
.
1.
CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn power switch OFF.
2. Disconnect rear window defogger connector.
3. Turn power switch ON.
4. Check voltage between rear window defogger harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn power switch OFF.
2. Check continuity between rear window defogger harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK FILAMENT
DEF-37, "Inspection and Repair"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair filament.
4.
CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 1
1. Turn power switch OFF.
2. Disconnect condenser connector.
3. Check continuity between condenser harness connector and rear window defogger harness connector.
(+)
(-)
Condition
Voltage (V)
(Approx.)
Rear window defogger
Connector
Terminal
D565
1
Ground
Rear window defogger switch
ON
Battery voltage
OFF
0
Rear window defogger
Ground
Continuity
Connector
Terminal
D567
2
Yes
![](/vehicles/gon/gut/gevermery/roulch.png)
REAR WINDOW DEFOGGER
DEF-29
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
DEF
N
O
P
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT 2
1. Disconnect IPDM E/R connectors.
2. Check continuity between IPDM E/R harness connector and condenser harness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK CONDENSER
DEF-29, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace condenser. Refer to
DEF-39, "Removal and Installation"
.
7.
CHECK INTERMITTENT INCIDENT
GI-53, "Intermittent Incident"
.
>> Inspection End.
Component Inspection
INFOID:0000000010119501
1.
CHECK CONDENSER
1. Turn power switch OFF.
2. Disconnect condenser connector.
3. Check continuity between condenser terminals.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace condenser. Refer to
DEF-39, "Removal and Installation"
.
Condenser
Rear window defogger
Continuity
Connector
Terminal
Connector
Terminal
D566
2
D565
1
Yes
IPDM E/R
Condenser
Continuity
Connector
Terminal
Connector Terminal
E11
14
D564
1
Yes
Condenser
Continuity
Terminal
Terminal
1
2
Yes
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