Nissan Xterra. Manual - part 50

AV-192

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

AMP. ON SIGNAL CIRCUIT

AMP. ON SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009485308

Regarding Wiring Diagram information, refer to 

AV-135, "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-218, "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-193

< 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:0000000009485309

Regarding Wiring Diagram information, refer to 

AV-135, "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 D506.

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-218, "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

D506

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

AV-194

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT

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 D506.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connectors.

5.

CHECK CAMERA GROUND CIRCUIT CONTINUITY

Check continuity between AV control unit connector M97 and rear view camera connector D506.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness or connectors.

6.

CHECK CAMERA IMAGE SIGNAL

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 signal between AV control unit connector M97 and ground.

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-218, "Removal and Installation"

.

NO

>> Replace rear view camera. Refer to 

AV-233, "Removal and Installation"

.

AV control unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M97

36

D506

3

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M97

36

No

AV control unit

Rear view camera

Continuity

Connector

Terminal

Connector

Terminal

M97

35

D506

4

Yes

AV control unit Connector M97

Condition

Reference value

(+)

(

−)

Terminal

Terminal

36

35

Camera image displayed.

SKIB2251J

AV

STEERING SWITCH

AV-195

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

STEERING SWITCH

Diagnosis Procedure

INFOID:0000000009485310

Regarding Wiring Diagram information, refer to 

AV-135, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Disconnect combination switch connector M102.

2. Check resistance between combination switch connector terminals.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace steering wheel audio control switches. Refer to 

AV-225, "Removal and Installation"

.

2.

CHECK HARNESS BETWEEN AV CONTROL UNIT AND COMBINATION SWITCH

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M96 and combination switch connector M30.

3. Check continuity between AV control unit connector M96 and combination switch connector M30.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

SPIRAL CABLE CHECK

Check continuity between combination switch connectors M30 and M102.

Combination switch connector M102

Condition

Resistance (

Ω)

(Approx.)

Terminal

Terminal

16

18

Depress VOL DOWN switch.

1

Depress VOL UP switch.

121

Depress  

switch.

321

15

Depress MODE switch.

1

Depress  

switch.

121

Depress  

switch.

321

Depress  

switch.

723

AV control unit

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

M96

6

M30

24

Yes

16

25

15

31

AV control unit

—

Continuity

Connector

Terminal

M96

6

Ground

No

16

15