Nissan Leaf. Manual — part 1278
WCS
DIAGNOSIS AND REPAIR WORKFLOW
WCS-39
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000010121636
OVERALL SEQUENCE
DETAILED FLOW
1.
OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.
CHECK SYMPTOM
• Check the symptom based on the information obtained from the customer.
• Check if any other malfunctions are present.
>> GO TO 3.
3.
CHECK CONSULT SELF-DIAGNOSIS RESULTS
Connect CONSULT and perform “Self Diagnosis”. Refer to
.
AWNIA2375GB
WCS-40
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
Are self-diagnosis results normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
NARROW DOWN MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts.
>> GO TO 5.
5.
REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.
>> GO TO 6.
6.
FINAL CHECK
Check that the warning buzzer in the combination meter operates normally.
Does it operate normally?
YES
>> Inspection End.
NO
>> GO TO 1.
WCS
POWER SUPPLY AND GROUND CIRCUIT
WCS-41
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000010505316
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check that the following fuses are not blown:
Is the fuse blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connector.
3.
CHECK GROUND CIRCUIT
1. Power switch OFF.
2. Disconnect combination meter connector.
3. Check continuity between combination meter harness connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connector.
BCM
BCM : Diagnosis Procedure
INFOID:0000000010563527
Regarding Wiring Diagram information, refer to
.
Power source
Fuse No.
Battery
11
Power switch ON
5
Terminals
Power switch position
Voltage
(Approx.)
(+)
(
−)
Combination meter
Ground
Connector
Terminal
M34
1
OFF
Battery voltage
3
ON
Combination meter
Ground
Continuity
Connector
Terminal
M34
5
Yes
6
WCS-42
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
1.
CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connector M25.
2. Check voltage between BCM connector M25 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M25 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Terminal No.
Signal name
Fuse and fusible link No.
57
Battery power supply
9 (10A)
70
H (40A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M25
57
—
Battery voltage
70
BCM
Ground
Continuity
Connector
Terminal
M25
67
—
Yes
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