Nissan Pathfinder. Manual — part 1202
WCS
DIAGNOSIS AND REPAIR WORKFLOW
WCS-25
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000009174322
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-26
< 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. Refer to
.
>> 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-27
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis Procedure
INFOID:0000000009730854
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES
Check that the following fuses are not blown.
Is the fuse blown?
YES
>> GO TO 2.
NO
>> Replace the blown fuse after repairing the affected circuit.
2.
POWER SUPPLY CIRCUIT CHECK
1. Disconnect combination meter connector.
2. Check voltage between combination meter harness connector M24 terminals 5, 21, 22 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
GROUND CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Check continuity between combination meter harness connector M24 terminals 1, 2 and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
BCM (BODY CONTROL MODULE)
Unit
Power source
Fuse No.
Combination meter
Battery
13
65
Ignition switch ON or START
31
Terminals
Ignition switch position
(+)
(–)
OFF
ACC
ON
START
Connector
Terminal
M24
22
Ground
Battery voltage
Battery voltage
Battery voltage
Battery voltage
21
0V
0V
Battery voltage
Battery voltage
5
0V
Battery voltage
Battery voltage
0V
Terminals
Continuity
(+)
(–)
Connector
Terminal
M24
1
Ground
Yes
2
WCS-28
< DTC/CIRCUIT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000009764031
Regarding Wiring Diagram information, refer to
.
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 M81.
2. Check voltage between BCM connector M81 terminals 131, 139 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 M81 terminals 134, 143 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.
139
Fusible link battery power
O (40A)
131
BCM battery fuse
1 (10A)
BCM
Ground
Voltage
(Approx.)
Connector
Terminal
M81
131
—
Battery voltage
139
BCM
Ground
Continuity
Connector
Terminal
M81
134
—
Yes
143
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