Nissan X-Trail 32. Manual — part 13

AV-44

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL GND CIRCUIT

STEERING SWITCH SIGNAL GND CIRCUIT

Description

INFOID:0000000010714767

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000010714768

1.

CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter harness connector and spiral cable harness connector.

3.

Check continuity between combination meter harness connector and spiral cable harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

1.

Disconnect steering switch connector.

2.

Check continuity between spiral cable harness connectors.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace spiral cable. Refer to

SR-23, "Removal and Installation"

.

3.

CHECK STEERING SWITCH

Check steering switch. Refer to

AV-44, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch. Refer to

AV-57, "Removal and Installation"

.

Component Inspection

INFOID:0000000010714769

Measure the resistance between the steering switch connector.

Combination meter

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M34

21

M33

23

Existed

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M33

23

M303

4

Existed

AV

STEERING SWITCH SIGNAL GND CIRCUIT

AV-45

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Steering switch

Condition

Resistance

(Approx.)

Ω

Terminal

Terminal

10

4

ENTER switch is pressed

1982 – 2064

TEL switch is pressed

708 – 738

MENU DOWN switch is
pressed

314 – 328

MENU UP switch is pressed

118 – 124

BACK switch is pressed

0

5

SEEK UP switch is pressed

1982 – 2064

SEEK DOWN switch is
pressed

708 – 738

TEL END switch is pressed

314 – 328

VOL UP switch is pressed

118 – 124

VOL DOWN switch is
pressed

0

JSNIA7127GB

AV-46

< SYMPTOM DIAGNOSIS >

[BASE AUDIO]

AUDIO SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

AUDIO SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000010714770

RELATED TO AUDIO SYSTEM

RELATED TO USB

NOTE:
Check that there is no malfunction of USB equipment main body before performing a diagnosis.

iPod is a trademark of Apple inc., registered in the U.S. and other countries.

RELATED TO AUXILIARY INPUT

NOTE:
Check that there is no malfunction of AUX equipment main body before performing a diagnosis.

Symptoms

Check items

Possible malfunction location / Action to take

Audio unit does not start.

—

Audio unit power supply and ground circuit.
Refer to

AV-34, "AUDIO UNIT : Diagnosis Procedure"

.

No sound comes out.

No sound from all speakers.

Audio unit power supply and ground circuit.
Refer to

AV-34, "AUDIO UNIT : Diagnosis Procedure"

.

Only a certain speaker (front right,
front left, rear right, or rear left, etc.)
does not output sound.

• Poor connector connection of speaker.
• Sound signal circuit malfunction between audio unit and

speaker.

• Malfunction in speaker.
• Malfunction in audio unit.

Noise is mixed with audio.

Noise comes out from all speaker.

Malfunction in audio unit.

Noise comes out only from a certain
speaker (front right, front left, rear
right, or rear left, etc.).

• Poor connector connection of speaker.
• Sound signal circuit malfunction between audio unit and

speaker.

• Malfunction in speaker.
• Poor installation of speaker (e.g. backlash and looseness)
• Malfunction in audio unit.

Noise is mixed with radio only
(when the car hits a bump or while
driving over bad roads).

Poor connector connection of antenna or antenna feeder.

Radio is not received or poor re-
ception.

• Other audio sounds are normal.
• Any radio cannot be received or

poor reception is caused even af-
ter moving to a service area with
good reception (e.g. a place with
clear view and no obstacles gen-
erating external noises).

• Antenna amp. ON signal circuit malfunction.
• Poor connector connection of antenna or antenna feeder.

The function automatically ad-
justing volume (speed sensitive
volume) does not operate due
to the change in vehicle speed.
(Volume can be controlled with
the volume control knob.)

—

• Vehicle speed signal circuit.

Refer to

AV-36, "Component Function Check"

.

• Malfunction in audio unit.

Refer to

AV-51, "Removal and Installation"

.

Symptoms

Check items

Probable malfunction location / Action

to take

iPod or USB memory can not be
recognized.

With iPod or USB
memory Connected,
check “USB connect-
ed” in diagnostic func-
tion of audio unit.

“Yes” is display for “USB
connected”.

iPod or USB memory

“No” is display for “USB con-
nected”.

• USB and AUX harness
• USB connector and AUX jack
• Audio unit

AV

AUDIO SYSTEM SYMPTOMS

AV-47

< SYMPTOM DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

RELATED TO STEERING SWITCH

Symptoms

Check items

Probable malfunction location

No voice sound is heard when
AUX mode is selected.

Voice sound is heard when other modes
are selected.

• USB and AUX harness
• USB connector and AUX jack

Symptoms

Possible malfunction location / Action to take

All steering switches are not operated.

Steering switch signal ground circuit. Refer to

AV-44, "Diagnosis Pro-

cedure"

.

Only specified switch cannot be operated.

Replace steering switch. Refer to

AV-57, "Removal and Installation"

.

“BACK”, “MENU UP”, “MENU DOWN”, “TEL” and “ENTER”
switches are not operated.

Steering switch signal A circuit.
Refer to

AV-40, "Diagnosis Procedure"

.

“VOL DOWN”, “VOL UP”, “TEL END”, “SEEK DOWN” and
“SEEK UP” switches are not operated.

Steering switch signal B circuit.
Refer to

AV-42, "Diagnosis Procedure"

.