Nissan X-Trail 32. Manual — part 410
DEF-24
< WIRING DIAGRAM >
REAR WINDOW DEFOGGER SYSTEM
JRLWD5760GB
DIAGNOSIS AND REPAIR WORK FLOW
DEF-25
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
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DETAILED FLOW
1.
OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.
>> GO TO 2.
2.
CHECK DTC
Perform self diagnosis with CONSULT.
Is any DTC detected?
YES
>> Refer to
NO
>> GO TO 3.
3.
REPRODUCE THE MALFUNCTION INFORMATION
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 4.
4.
IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”
Use “Symptom diagnosis” from the symptom inspection result in step 3. Then identify where to start perform-
ing the diagnosis based on possible causes and symptoms.
>> GO TO 5.
5.
IDENTIFY MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”
Perform the diagnosis with “Component diagnosis” of the applicable system.
>> GO TO 6.
6.
REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 7.
7.
FINAL CHECK
Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 3.
Are all malfunctions corrected?
YES
>> INSPECTION END
NO
>> GO TO 4.
DEF-26
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER SWITCH
DTC/CIRCUIT DIAGNOSIS
REAR WINDOW DEFOGGER SWITCH
Component Function Check
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1.
CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
Check that the indicator lamp of rear window defogger illuminates when rear window defogger switch ON.
Is the inspection result normal?
YES
>> Rear window defogger switch function is OK.
NO
>> Refer to
Diagnosis Procedure
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1.
CHECK A/C TYPE
Check A/C type.
Automatic A/C>>GO TO 2.
Manual A/C>>GO TO 3.
2.
REPLACE A/C CONTROL
1.
Turn ignition switch OFF.
2.
Replace A/C control. Refer to
HAC-125, "Removal and Installation"
3.
Turn ignition switch ON.
4.
Operate rear window defogger switch and check the operating condition.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace A/C auto amp. Refer to
HAC-126, "Removal and Installation"
3.
REPLACE A/C AMP.
1.
Turn ignition switch OFF.
2.
Replace A/C amp. Refer to
HAC-222, "Removal and Installation"
.
3.
Turn ignition switch ON.
4.
Operate rear window defogger switch and check the operating condition.
>> INSPECTION END
REAR WINDOW DEFOGGER RELAY
DEF-27
< DTC/CIRCUIT DIAGNOSIS >
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REAR WINDOW DEFOGGER RELAY
Component Function Check
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1.
CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1.
Perform BCM Active Test (“REAR DEFOGGER”) with 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 power supply circuit is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000010774380
1.
CHECK REAR WINDOW DEFOGGER CIRCUIT 1
1.
Turn ignition switch ON.
2.
Check voltage between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO-1
>> Fixed at 0 V and remains unchanged: GO TO 2.
NO-2
>> Fixed at 9 – 16 V and remains unchanged: Replace BCM. Refer to
2.
CHECK REAR WINDOW DEFOGGER CIRCUIT 2
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and fuse block (J/B) connector.
3.
Check continuity between BCM harness connector and fuse block (J/B) harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness.
3.
CHECK REAR WINDOW DEFOGGER RELAY
Check rear window defogger relay. Refer to
DEF-28, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace rear window defogger relay.
4.
CHECK FUSE BLOCK (J/B)
1.
Install the rear window defogger relay.
2.
Connect fuse block (J/B) connector.
3.
Turn ignition switch ON.
4.
Check voltage between fuse block (J/B) harness connector and ground.
(+)
(-)
Condition
Voltage
BCM
Connector
Terminal
M87
64
Ground
Rear window defogger switch
ON
0 – 1.5 V
OFF
9 – 16 V
BCM
Fuse block (J/B)
Continuity
Connector
Terminal
Connector
Terminal
M87
64
M3
6C
Existed
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