Nissan Pathfinder. Manual - part 129

AV

HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

AV-343

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

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HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174607

Regarding Wiring Diagram information, refer to 

AV-242, "Wiring Diagram"

.

1.

CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M45 and display unit connector.

3. Check continuity between AV control unit connector M45 terminal 62 and display unit connector M93 ter-

minal 8.

4. Check continuity between AV control unit connector M45 terminal 62 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL

1. Connect AV control unit connector M45 and display unit connector.

2. Turn ignition switch ON.

3. Check signal between display unit connector M93 terminal 8 and ground.

Is inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-365, "Removal and Installation"

.

NO

>> Replace display unit. Refer to 

AV-369, "Removal and Installation"

.

AV control unit

Display unit

Continuity

Connector

Terminal

Connector

Terminal

M45

62

M93

8

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M45

62

No

Display unit

Ground

Reference value

(+)

(

−)

Connector

Terminal

M93

8

—

SKIB3601E

AV-344

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174608

Regarding Wiring Diagram information, refer to 

AV-242, "Wiring Diagram"

.

1.

CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M45 and display unit connector.

3. Check continuity between AV control unit connector M45 terminal 74 and display unit connector M93 ter-

minal 20.

4. Check continuity between AV control unit connector M45 terminal 74 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL

1. Connect AV control unit connector M45 and display unit connector.

2. Turn ignition switch ON.

3. Check signal between display unit connector M93 terminal 20 and ground.

Is inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-365, "Removal and Installation"

.

NO

>> Replace display unit. Refer to 

AV-369, "Removal and Installation"

.

AV control unit

Display unit

Continuity

Connector

Terminal

Connector

Terminal

M45

74

M93

20

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M45

74

No

Display unit

Ground

Reference value

(+)

(

−)

Connector

Terminal

M93

20

—

SKIB3598E

AV

COMPOSITE IMAGE SIGNAL CIRCUIT

AV-345

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

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COMPOSITE IMAGE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174609

Regarding Wiring Diagram information, refer to 

AV-242, "Wiring Diagram"

.

1.

CHECK COMPOSITE IMAGE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M45 and display unit connector.

3. Check continuity between AV control unit connector M45 terminal 53 and display unit connector M93 ter-

minal 15.

4. Check continuity between AV control unit connector M45 terminal 53 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK COMPOSITE IMAGE SIGNAL GROUND CIRCUIT CONTINUITY

Check continuity between AV control unit connector M45 terminal 54 and display unit connector M93 terminal

4.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK COMPOSITE IMAGE SIGNAL

1. Connect AV control unit connector M45 and display unit connector.

2. Turn ignition switch ON.

3. Check signal between display unit connector M93 terminal 15 and ground.

AV control unit

Display unit

Continuity

Connector

Terminal

Connector

Terminal

M45

53

M93

15

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M45

53

No

AV control unit

Display unit

Continuity

Connector

Terminal

Connector

Terminal

M45

54

M93

4

Yes

Display unit

Ground

Condition

Reference value

(+)

(

−)

Connector

Terminal

M93

15

—

Camera image dis-

played.

SKIB2251J

AV-346

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

COMPOSITE IMAGE SIGNAL CIRCUIT

Is inspection result normal?

YES

>> Replace display unit. Refer to 

AV-369, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-365, "Removal and Installation"

.