Nissan Titan A60. Manual — part 77

AV

COMMUNICATION SIGNAL CIRCUIT

AV-133

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

COMMUNICATION SIGNAL CIRCUIT

SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description

INFOID:0000000006166522

Communication signals are exchanged between the audio unit and satellite radio tuner using the communica-

tion circuits.

SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000006166523

Regarding Wiring Diagram information, refer to

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

.

1.

CHECK HARNESS - REQ1

1. Turn ignition switch OFF.

2. Disconnect satellite radio tuner (factory installed) connector M41

and audio unit connector M170.

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

harness connector M41 (A) terminal 28 and audio unit harness

connector M170 (B) terminal 48.

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

harness connector M41 (A) terminal 28 and ground.

Are continuity results as specified?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK HARNESS - TXD

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

harness connector M41 (A) terminal 29 and audio unit harness

connector M170 (B) terminal 49.

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

harness connector M41 (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

M41

28

M170

48

Yes

A

—

Continuity

Connector

Terminal

M41

28

Ground

No

ALNIA0709GB

A

B

Continuity

Connector

Terminal

Connector

Terminal

M41

29

M170

49

Yes

A

—

Continuity

Connector

Terminal

M41

29

Ground

No

ALNIA0707GB

AV-134

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

COMMUNICATION SIGNAL CIRCUIT

3.

CHECK HARNESS - RXD

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

harness connector M41 (A) terminal 30 and audio unit harness

connector M170 (B) terminal 50.

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

harness connector M41 (A) terminal 30 and ground.

Are continuity results as specified?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK REQ1 SIGNAL

1. Connect satellite radio tuner (factory installed) connector and audio unit connector.

2. Turn ignition switch to ACC

3. Check signal between satellite radio tuner (factory installed) har-

ness connector M41 terminal 28 and ground with CONSULT-III

or oscilloscope.

Are voltage readings as specified?

YES

>> GO TO 5.

NO

>> Replace audio unit. Refer to

AV-175, "Removal and Installation"

.

5.

CHECK TXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness

connector M41 terminal 29 and ground with CONSULT-III or oscillo-

scope.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M41

30

M170

50

Yes

A

—

Continuity

Connector

Terminal

M41

30

Ground

No

ALNIA0708GB

(+)

(-)

Reference signal

Connector

Terminal

M41

28

Ground

WKIA4544E

SKIB3825E

(+)

(-)

Reference signal

Connector

Terminal

M41

29

Ground

WKIA4545E

SKIB3824E

AV

COMMUNICATION SIGNAL CIRCUIT

AV-135

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Are the voltage readings as specified?

YES

>> GO TO 6.

NO

>> Replace satellite radio tuner. Refer to

AV-187, "Removal and Installation"

.

6.

CHECK RXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness

connector M41 terminal 30 and ground with CONSULT-III or oscillo-

scope.

Are the voltage readings as specified?

YES

>> Replace satellite radio tuner. Refer to

AV-187, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to

AV-175, "Removal and Installation"

.

(+)

(-)

Reference signal

Connector

Terminal

M41

30

Ground

WKIA4546E

SKIB3826E

AV-136

< DTC/CIRCUIT DIAGNOSIS >

[PREMIUM WITHOUT NAVIGATION]

SOUND SIGNAL CIRCUIT

SOUND SIGNAL CIRCUIT

SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description

INFOID:0000000006166524

Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the

sound signal circuits.

SATELLITE RADIO TUNER : Diagnosis Procedure

INFOID:0000000006166525

Regarding Wiring Diagram information, refer to

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

.

LEFT CHANNEL

1.

CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect satellite radio tuner (factory installed) connector M41

and audio unit connector M170.

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

connector M41 (A) and audio unit connector M170 (B).

4. Check continuity between satellite radio tuner (factory installed) connector M41 (A) and ground.

Are continuity results as specified?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK LEFT CHANNEL AUDIO SIGNAL

1. Connect satellite radio tuner (factory installed) and audio unit.

2. Turn ignition switch ON.

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

connector M41 terminals 21 and 22 with CONSULT-III or oscillo-

scope.

Are voltage readings as specified?

A

B

Continuity

Connector

Terminal

Connector

Terminal

M41

21

M170

41

Yes

22

42

A

—

Continuity

Connector

Terminal

M41

21

Ground

No

22

ALNIA0710GB

Connector

(+)

(-)

Reference signal

Terminals

M41

22

21

ALNIA0880GB

SKIB3609E