Nissan Pathfinder. Manual — part 51
AV
DIAGNOSIS AND REPAIR WORKFLOW
AV-31
< BASIC INSPECTION >
[BASE AUDIO]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000009174387
OVERALL SEQUENCE
DETAILED FLOW
1.
GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the
incident/malfunction occurred).
>> GO TO 2
2.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition
when the symptom is detected.
>> GO TO 3
3.
DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
ALNIA0182GB
AV-32
< BASIC INSPECTION >
[BASE AUDIO]
DIAGNOSIS AND REPAIR WORKFLOW
Is malfunctioning part detected?
YES
>> GO TO 4
NO
>> GO TO 2
4.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure.
>> GO TO 5
5.
FINAL CHECK
Refer to confirmed symptom in step 2, and make sure that the symptom is not detected.
Has the symptom been repaired?
YES
>> Inspection End.
NO
>> GO TO 2
AV
POWER SUPPLY AND GROUND CIRCUIT
AV-33
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
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DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
INFOID:0000000009174388
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Check that the following fuses are not blown.
Are the fuses blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M123.
3. Check voltage between audio unit connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure
INFOID:0000000009174389
Regarding Wiring Diagram information, refer to
1.
CHECK FUSE
Check that the following fuses are not blown.
Are the fuses blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
Terminal No.
Signal name
Fuse No.
19
Battery power supply
15 (15A)
7
ACC power supply
65 (10A)
Audio unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M123
19
—
Ignition switch: OFF
Battery voltage
7
Ignition switch: ACC
Terminal No.
Signal name
Fuse No.
9
Battery power supply
15 (15A)
8
ACC power supply
65 (10A)
AV-34
< DTC/CIRCUIT DIAGNOSIS >
[BASE AUDIO]
POWER SUPPLY AND GROUND CIRCUIT
2. Disconnect display unit connector M192.
3. Check voltage between display unit connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness or connectors.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between display unit connector and ground.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Repair or replace harness or connectors.
Display unit
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M192
9
—
Ignition switch: OFF
Battery voltage
8
Ignition switch: ACC
Display unit
Ground
Continuity
Connector
Terminal
M192
3
—
Yes
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