Nissan Maxima. Manual - part 109

AV-256

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SUBWOOFER

1. Connect AV control unit connector M115 and subwoofer amp.

connector B21.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between AV control unit harness connector

M115 terminals with CONSULT or oscilloscope.

Is the audio signal voltage as specified?

YES

>> Replace subwoofer amp. Refer to 

AV-322, "Removal

and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-311, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M115

4

5

Receive 
audio sig-
nal

13

14

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SKIA0177E

AV

STEERING SWITCH

AV-257

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STEERING SWITCH

Description

INFOID:0000000010064907

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:0000000010064908

Regarding Wiring Diagram information, refer to 

AV-282, "Wiring Diagram - Without BOSE Audio System With-

out Navigation System"

.

1.

CHECK STEERING SWITCH RESISTANCE

1. Disconnect steering switch connector M88.

2. Check resistance between steering switch connector terminals.

Do the steering switches check OK?

YES

>> GO TO 2.

NO

>> Replace steering switch. Refer to 

AV-326, "Removal and Installation"

.

2.

CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AV CONTROL UNIT

1. Disconnect AV control unit connector M115.

2. Check continuity between AV control unit harness connector M115 and combination switch (spiral cable)

harness connector M30.

3. Check continuity between AV control unit connector M115 and ground.

Are the continuity results as specified?

YES

>> GO TO 3.

NO

>> Repair harness.

Terminal

Signal name

Condition

Resistance 

(

Ω)

(Approx.)

14

17

Volume (down)

Depress volume DOWN switch.

0

Volume (up)

Depress volume UP switch.

121

Phone/End

Depress  

  switch.

321

15

Source

Depress SOURCE switch.

0

Seek (up)

Depress  

switch.

121

Seek (down)

Depress  

switch.

321

Phone/Send

Depress 

  switch.

723

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Connector

Terminal

Connector

Terminal

Continuity

M115

6

M30

24

Yes

16

31

15

33

Connector

Terminal

—

Continuity

M115

6

Ground

No

16

15

AV-258

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STEERING SWITCH

3.

COMBINATION SWITCH (SPIRAL CABLE) CHECK

1. Disconnect combination switch (spiral cable) connector M88.

2. Check continuity between combination switch (spiral cable) har-

ness connector M30 (A) and M88 (B).

Does the combination switch (spiral cable) check OK?

YES

>> Inspection End.

NO

>> Replace combination switch (spiral cable). Refer to 

SR-15, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M88

14

Yes

31

15

33

17

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AV

COMMUNICATION SIGNAL CIRCUIT

AV-259

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COMMUNICATION SIGNAL CIRCUIT

SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description

INFOID:0000000010064909

Communication signals are exchanged between the AV control unit and satellite radio tuner using the commu-

nication circuits.

SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000010064910

Regarding Wiring Diagram information, refer to 

AV-282, "Wiring Diagram - Without BOSE Audio System With-

out Navigation System"

.

1.

CHECK HARNESS - 1

1. Turn ignition switch OFF.

2. Disconnect satellite radio tuner (factory installed) connector

B111 and AV control unit connector M116.

3. Check continuity between satellite radio tuner (factory installed)

harness connector B111 (A) terminal 28 and AV control unit har-

ness connector M116 (B) terminal 28.

4. Check continuity between satellite radio tuner (factory installed)

harness connector B111 (A) terminal 28 and ground.

Are continuity results as specified?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK HARNESS - 2

1. Check continuity between satellite radio tuner (factory installed)

harness connector B111 (A) terminal 29 and AV control unit har-

ness connector M116 (B) terminal 29.

2. Check continuity between satellite radio tuner (factory installed)

harness connector B111 (A) terminal 29 and ground.

Are continuity results as specified?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

A

B

Continuity

Connector

Terminal

Connector

Terminal

B111

28

M116

28

Yes

A

—

Continuity

Connector

Terminal

B111

28

Ground

No

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A

B

Continuity

Connector

Terminal

Connector

Terminal

B111

29

M116

29

Yes

A

—

Continuity

Connector

Terminal

B111

29

Ground

No

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