Nissan Titan A60. Manual - part 76

AV

SUBWOOFER

AV-129

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

1. Connect audio unit connector M172 and audio amp. connector

M113.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector M172

terminals with CONSULT-III or oscilloscope.

Is the audio signal voltage reading as specified?

YES

>> Replace audio amp. Refer to 

AV-183, "Removal and

Installation"

.

NO

>> Replace audio unit. Refer to 

AV-175, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M172

14

13

Receive 
audio sig-
nal

16

15

AWNIA1615ZZ

SKIA0177E

AV-130

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[PREMIUM WITHOUT NAVIGATION]

AMP ON SIGNAL CIRCUIT

AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000006166518

When the audio system is turned on, a voltage signal is supplied from the audio unit to the audio amp. When

this signal is received, the audio amp. will turn on.

Diagnosis Procedure

INFOID:0000000006166519

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

CHECK AMP ON SIGNAL

1. Turn audio system ON.

2. Check voltage between audio amp. harness connector M113

terminal 9 and ground.

Is inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 2.

2.

CHECK AMP ON SIGNAL (AUDIO UNIT)

Check voltage between audio unit harness connector M172 terminal

12 and ground.

Is inspection result normal?

YES

>> Repair harness or connector.

NO

>> Replace audio unit. Refer to 

AV-175, "Removal and

Installation"

.

(+)

(-)

Voltage (approx.)

Connector

Terminal

M113

9

Ground

More than 6.5V

ALNIA0733GB

(+)

(-)

Voltage (approx.)

Connector

Terminal

M172

12

Ground

More than 6.5V

ALNIA0734GB

AV

STEERING SWITCH

AV-131

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STEERING SWITCH

Description

INFOID:0000000006166520

When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio

control switch circuit changes depending on which button is pushed.

Diagnosis Procedure

INFOID:0000000006166521

Regarding Wiring Diagram information, refer to 

AV-151, "Wiring Diagram - Without Navigation System"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn ignition switch OFF.

2. Disconnect steering wheel audio control switch connector M102.

3. Check resistance between steering switch connector terminals.

Do the steering wheel audio control switches check OK?

YES

>> GO TO 2.

NO

>> Replace steering wheel audio control switch. Refer to 

AV-181, "Removal and Installation"

.

2.

CHECK HARNESS

1. Disconnect Bluetooth control unit connector B142 and spiral

cable connector M30.

2. Check continuity between Bluetooth control unit harness con-

nector B142 (A) and spiral cable harness connector M30 (B).

3. Check continuity between Bluetooth control unit connector B142 (A) and ground.

Are the continuity results as specified?

Terminal

Signal name

Condition

Resistance 

(

Ω)

(Approx.)

16

17

Seek (down)

Depress  

switch.

165

Volume (down)

Depress VOL down switch.

652

Phone/End

Depress  

switch.

0

20

17

Seek (up)

Depress  

switch.

165

Volume (up)

Depress VOL up switch.

652

Phone/Send

Depress  

switch.

0

WKIA4457E

A

B 

Continuity

Connector

Terminal

Connector

Terminal

B142

12

M30

24

Yes

13

32

14

31

A

—

Continuity

Connector

Terminal

B142

12

Ground

No

13

14

ALNIA0735GB

AV-132

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STEERING SWITCH

YES

>> GO TO 3.

NO

>> Repair harness.

3.

SPIRAL CABLE CHECK

Check continuity between spiral cable harness connector M30 (A)

and M102 (B).

Does the spiral cable check OK?

YES

>> Inspection End.

NO

>> Replace spiral cable. Refer to 

SR-6, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M102

20

Yes

31

17

32

16

AWLIA1602ZZ