Nissan Pathfinder. Manual - part 189

AV

DISK EJECT SIGNAL CIRCUIT

AV-583

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DISK EJECT SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174783

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

1.

CHECK DISK EJECT SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M164 and A/C and AV switch assembly connector.

3. Check continuity between AV control unit connector M164 terminal 97 and A/C and AV switch assembly

connector M98 terminal 14.

4. Check continuity between AV control unit connector M164 terminal 97 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK AV CONTROL UNIT VOLTAGE 

1. Connect AV control unit connector M164 and A/C and AV switch assembly connector.

2. Turn ignition switch ON.

3. Check voltage between AV control unit connector M164 terminal 97 and ground.

Is the inspection result normal?

YES

>> Replace A/C and AV switch assembly. Refer to 

AV-613, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-611, "Removal and Installation"

.

AV control unit

A/C and AV switch assembly

Continuity

Connector

Terminal

Connector

Terminal

M164

97

M98

14

Yes

AV control unit

Ground

Continuity

Connector

Terminal

M164

97

No

AV control unit

Ground

Condition

Voltage

(Approx.)

(+)

(

−)

Connector

Terminal

M164

97

—

Pressing eject switch

0 V

Except above

5.0 V

AV-584

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MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174784

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

1.

CHECK MICROPHONE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M163 and microphone connector.

3. Check continuity between AV control unit connector M163 and microphone connector R109.

4. Check continuity between AV control unit connector M163 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK MICROPHONE VCC VOLTAGE

1. Connect AV control unit connector M163.

2. Turn ignition switch ON.

3. Check voltage between terminals of AV control unit connector M163.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace AV control unit. Refer to 

AV-611, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL 

1. Connect microphone connector.

2. Check signal between terminals of AV control unit connector M163.

AV control unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

M163

59

R109

5

Yes

60

3

75

6

AV control unit

Ground

Continuity

Connector

Terminal

M163

59

—

No

60

75

AV control unit connector M163

Voltage

(Approx.)

(+)

(

−)

Terminal

Terminal

60

59

5.0 V

AV

MICROPHONE SIGNAL CIRCUIT

AV-585

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Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-611, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-628, "Removal and Installation"

.

AV control unit connector M163

Condition

Reference value

(+)

(

−)

Terminal

Terminal

75

59

Speak into microphone.

PKIB5037J

AV-586

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STEERING SWITCH

STEERING SWITCH

Diagnosis Procedure

INFOID:0000000009174785

Regarding Wiring Diagram information, refer to 

AV-442, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn ignition switch OFF.

2. Disconnect combination switch connector M149.

3. Check the resistance between the terminals of combination switch connector M149.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace steering wheel audio control switch. Refer to 

AV-614, "Removal and Installation"

.

2.

CHECK HARNESS BETWEEN COMBINATION SWITCH AND COMBINATION METER

1. Disconnect combination meter connector M24 and combination switch connector M30.

2. Check continuity between combination meter connector M24 and combination switch connector M30.

3. Check continuity between combination meter connector M24 and ground.

Is the inspection result normal?

Combination switch connector M149

Condition

Resistance 

Ω

(Approx.)

Terminal

Terminal

14

17

Depress SOURCE switch.

1

Depress  

switch.

121

Depress  

switch.

321

Depress  

switch.

723

Depress ENTER switch.

2023

15

Depress  

switch.

1

Depress  

switch.

121

Depress  

switch. 

321

Depress  

switch. 

723

Depress DISP switch.

2023

Combination meter

Combination switch 

Continuity

Connector

Terminal

Connector

Terminal

M24

3

M30

24

Yes

24

33

4

31

Combination meter

Ground

Continuity

Connector

Terminal

M24

3

—

No

24

4