Nissan Frontier. Manual - part 51

AV-196

< BASIC INSPECTION >

[DISPLAY AUDIO WITH AMPLIFIER]

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.
Was the repair confirmed?

YES

>> Inspection End.

NO

>> GO TO 2

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-197

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure

INFOID:0000000009482150

Regarding Wiring Diagram information, refer to 

AV-177, "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 M46.

3. Check voltage between audio unit connector M46 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK GROUND CIRCUIT

1. Disconnect audio unit connector M65.

2. Check continuity between audio unit connectors and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

AUDIO AMP
AUDIO AMP : Diagnosis Procedure

INFOID:0000000009482151

Regarding Wiring Diagram information, refer to 

AV-177, "Wiring Diagram"

.

Terminal No.

Signal name

Fuse No.

7

ACC power supply

4 (10A)

19

Battery power supply

29 (20A)

Audio unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M46

7

—

Ignition switch: ON

Battery voltage

19

Ignition switch: OFF

Audio unit

Ground

Continuity

Connector

Terminal

M46

20

—

Yes

M65

46

47

AV-198

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

POWER SUPPLY AND GROUND CIRCUIT

1.

CHECK FUSE

Check that the following fuse is 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

1. Turn ignition switch OFF.

2. Disconnect audio amplifier connector B158.

3. Check voltage between audio amplifier connector B158 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 audio amplifier connector B158 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

BLUETOOTH® CONTROL UNIT
BLUETOOTH® CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009482152

Regarding Wiring Diagram information, refer to 

AV-177, "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.

Terminal No.

Signal name

Fuse No.

1

Battery power supply

17 (15A)

17

Audio amplifier

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

B158

1

—

Ignition switch: OFF

Battery voltage

17

Audio amplifier

Ground

Continuity

Connector

Terminal

B158

4

—

Yes

20

Terminal No.

Signal name

Fuse No.

1

Battery power supply

29 (20A)

2

ACC power supply

4 (10A)

3

Ignition power supply

12 (10A)

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-199

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITH AMPLIFIER]

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2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

 control unit connector B141.

3. Check voltage between Bluetooth

®

 control unit connector B141 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 Bluetooth

®

 control unit connector B141 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

MICROPHONE
MICROPHONE : Diagnosis Procedure

INFOID:0000000009482153

Regarding Wiring Diagram information, refer to 

AV-104, "Wiring Diagram"

.

1.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch ON.

2. Check voltage between microphone connector R8 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT CONTINUITY

1. Turn ignition switch OFF.
2. Disconnect microphone connector and Bluetooth

®

 control unit connector B141.

3. Check continuity between microphone connector R8 and Bluetooth

®

 control unit connector B141. 

Bluetooth

®

 control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

B141

1

—

Ignition switch: OFF

Battery voltage

2

Ignition switch: ON

3

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminal

B141

4

—

Yes

21

Microphone

Ground

Value (Approx.)

Connector

Terminal

R8

4

—

5V