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 

AV-21, "Wiring Diagram"

.

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 

AV-21, "Wiring Diagram"

.

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