Nissan Frontier. Manual - part 82

AV-320

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

SUBWOOFER

Is the inspection result normal?

YES

>> Replace subwoofer. Refer to 

AV-354, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK PRE-AMP SIGNAL CIRCUIT CONTINUITY

1. Disconnect AV control unit connector M96 and audio amplifier connector B159.

2. Check continuity between AV control unit connector M96 and audio amplifier connector B159.

3. Check continuity between AV control unit connector M96 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connectors.

5.

CHECK PRE-AMP SIGNAL

1. Connect AV control unit connector M96 and audio amplifier connector B159.

2. Turn ignition switch to ACC.

3. Push AV control unit POWER switch.

4. Check signal between the terminals of AV control unit connector M96.

Is the inspection result normal?

2

18

Audio signal output

3

19

SKIA0177E

AV control unit

Audio amplifier

Continuity

Connector

Terminal

Connector

Terminal

M96

4

B159

24

Yes

5

8

13

23

14

7

AV control unit

Ground

Continuity

Connector

Terminal

M96

4

—

No

5

13

14

AV control unit connector M96

Condition

Reference value

(+)

(

−)

Terminal

Terminal

4

5

Audio signal output

13

14

SKIA0177E

AV

SUBWOOFER

AV-321

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

YES

>> Replace audio amplifier. Refer to 

AV-349, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-348, "Removal and Installation"

.

AV-322

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

AMP ON SIGNAL CIRCUIT

AMP ON SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009482238

Regarding Wiring Diagram information, refer to 

AV-264, "Wiring Diagram"

.

1.

CHECK AUDIO AMPLIFIER AMP ON SIGNAL

1. Turn audio system ON.

2. Check voltage between audio amplifier connector B159 and ground.

Is inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK AV CONTROL UNIT AMP ON SIGNAL

Check voltage between AV control unit connector M96 and ground.

Is inspection result normal?

YES

>> Repair or replace harness or connectors.

NO

>> Replace AV control unit. Refer to 

AV-348, "Removal and Installation"

.

Audio amplifier

Ground

Voltage

(Approx.)

Connector

Terminal

B159

9

—

Greater than 6.5 V

AV control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M96

1

—

Greater than 6.5 V

AV

REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT

AV-323

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009482239

Regarding Wiring Diagram information, refer to 

AV-264, "Wiring Diagram"

.

1.

CHECK REVERSE INPUT SIGNAL

1. Turn ignition switch ON.

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

3. Check voltage between AV control unit connector M97 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 AV control unit connector M97 and rear view camera connector.

3. Check continuity between AV control unit connector M97 and rear view camera connector C251.

4. Check continuity between AV control unit connector M97 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 AV control unit connector M97 and rear view camera connector.

2. Turn ignition switch ON.

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

4. Check voltage between AV control unit connector M97 and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit. Refer to 

AV-348, "Removal and Installation"

.

4.

CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

AV control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M97

28

—

Selector lever in R (re-
verse)

Battery Voltage

AV control unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M97

34

C251

1

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M97

34

No

AV control unit

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M97

34

—

Selector lever is in “R”.

6.0 V