Nissan Frontier. Manual - part 34

AV-128

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

FRONT TWEETER

Is the inspection result normal?

YES

>> Replace front tweeter. Refer to 

AV-147, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-146, "Removal and Installation"

.

2

3

Audio signal output

11

12

SKIB3609E

AV

REAR DOOR SPEAKER

AV-129

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009482114

Regarding Wiring Diagram information, refer to 

AV-104, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit and speaker connectors for the following:

•  Proper connection

•  Damage

•  Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the terminals or connectors.

2.

CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M44 and suspect rear door speaker connector.

2. Check continuity between audio unit connector M44 and suspect rear door speaker connector.

3. Check continuity between audio unit connector M44 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK FRONT DOOR SPEAKER SIGNAL

1. Connect audio unit connector M44 and suspect rear door speaker connector.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check signal between the terminals of audio unit connector M44.

Audio unit

Rear door speaker

Continuity

Connector

Terminal

Connector

Terminal

M44

4

D207 (LH) (crew cab)

1

Yes

5

2

13

D307 (RH) (crew cab)

1

14

2

4

B76 (LH) (king cab)

1

5

2

13

B160 (RH) (king cab)

1

14

2

Audio unit

Ground

Continuity

Connector

Terminal

M44

4

—

No

5

13

14

AV-130

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

REAR DOOR SPEAKER

Is the inspection result normal?

YES

>> Replace rear door speaker. Refer to 

AV-149, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-146, "Removal and Installation"

.

Audio unit connector M44

Condition

Reference value

(+)

(

−)

Terminal

Terminal

4

5

Audio signal output

13

14

SKIB3609E

AV

REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT

AV-131

< DTC/CIRCUIT DIAGNOSIS >

[DISPLAY AUDIO WITHOUT AMPLIFIER]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009482115

Regarding Wiring Diagram information, refer to 

AV-104, "Wiring Diagram"

.

1.

CHECK REVERSE INPUT SIGNAL

1. Turn ignition switch ON.

2. Shift the selector lever to R (reverse).

3. Check voltage between audio unit connector M45 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK CAMERA POWER SUPPLY CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M45 and rear view camera connector.

3. Check continuity between audio unit connector M45 and rear view camera connector C251.

4. Check continuity between audio unit connector M45 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK CAMERA POWER SUPPLY VOLTAGE

1. Connect audio unit connector M45 and rear view camera connector.

2. Turn ignition switch ON.

3. Shift the selector lever to R (reverse).

4. Check voltage between audio unit connector M45 and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace audio unit. Refer to 

AV-146, "Removal and Installation"

.

4.

CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

Audio unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M45

50

—

Selector lever in R (re-
verse)

Battery Voltage

Audio unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M45

34

C251

1

Yes

Audio unit

Ground

Continuity

Connector

Terminal

M45

34

No

Audio unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M45

34

—

Selector lever is in “R”.

6.0 V