Nissan Leaf. Manual — part 120

AV

STEERING SWITCH

AV-471

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

C

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STEERING SWITCH

Diagnosis Procedure

INFOID:0000000010122696

Regarding Wiring Diagram information, refer to

AV-394, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn power switch OFF.

2. Disconnect combination switch connector M112.

3. Check resistance between the terminals of combination switch connector M112.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace steering switches. Refer to

AV-497, "Removal and Installation"

.

2.

CHECK COMBINATION SWITCH

Check continuity between combination switch connectors M112 and M92.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace spiral cable. Refer to

SR-23, "Removal and Installation"

.

3.

CHECK HARNESS BETWEEN COMBINATION SWITCH AND AUDIO UNIT

1. Disconnect AV control unit connector M100.

2. Check continuity between combination switch connector M92 and AV control unit connector M100.

Combination switch connector M112

Condition

Resistance

Ω

(Approx.)

Terminal

Terminal

14

17

Depress SOURCE switch.

1

Depress

switch.

121

Depress

switch.

321

Depress

switch.

723

Depress

switch.

2023

15

Depress

switch.

1

Depress

switch.

121

Depress

switch.

321

Depress

switch.

723

Combination switch

Continuity

Connector

Terminal

Connector

Terminal

M112

14

M92

24

Yes

15

31

17

33

AV-472

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

STEERING SWITCH

3. Check continuity between combination switch connector M92 and ground.

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to

AV-488, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Combination switch

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M92

24

M100

6

Yes

31

16

33

15

Combination switch

Ground

Continuity

Connector

Terminal

M92

24

—

No

31

33

AV

USB CONNECTOR

AV-473

< DTC/CIRCUIT DIAGNOSIS >

[NAVIGATION WITH BOSE]

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USB CONNECTOR

Diagnosis Procedure

INFOID:0000000010122697

Regarding Wiring Diagram information, refer to

AV-394, "Wiring Diagram"

.

1.

CHECK USB INTERFACE HARNESS CONTINUITY

1. Turn power switch OFF.

2. Disconnect AV control unit connector M107 and USB connector M53.

3. Check continuity between AV control unit connector M107 and USB connector M53.

4. Check continuity between AV control unit connector M107 and ground.

Is the inspection result normal?

YES

>> Replace the USB connector. Refer to

AV-499, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

AV control unit

USB

Continuity

Connector

Terminal

Connector

Terminal

M107

78

M53

2

Yes

79

1

80

4

81

3

82

5

AV control unit

—

Continuity

Connector

Terminal

M107

78

Ground

No

80

AV-474

< SYMPTOM DIAGNOSIS >

[NAVIGATION WITH BOSE]

MULTI AV SYSTEM

SYMPTOM DIAGNOSIS

MULTI AV SYSTEM

Symptom Table

INFOID:0000000010122698

RELATED TO AUDIO

Symptoms

Check items

Probable malfunction location

The disk cannot be removed.

AV control unit

Malfunction in AV control unit.
Refer to

AV-367, "On Board Diagnosis Function"

.

No sound comes out or the level of
the sound is low.

No sound from all speakers.

• Speaker circuit shorted to ground.

Refer to

AV-394, "Wiring Diagram"

.

• Bose amp. ON signal circuit malfunction.

Refer to

AV-467, "Diagnosis Procedure"

.

• Bose speaker amp. power supply and ground cir-

cuits malfunction.
Refer to

AV-453, "BOSE AMP. : Diagnosis Proce-

dure"

.

Only a certain speaker (front door
speaker LH, front door speaker RH,
tweeter LH, tweeter RH, rear door
speaker LH, rear door speaker RH, sub-
woofer) does not output sound.

• Poor connector connection of speaker.
• Sound signal circuit malfunction between AV con-

trol unit and Bose speaker amp.
Refer to:

-

AV-456, "Diagnosis Procedure"

(front door speak-

er).

-

AV-459, "Diagnosis Procedure"

(tweeter).

-

AV-462, "Diagnosis Procedure"

(rear door speak-

er).

-

AV-465, "Diagnosis Procedure"

(subwoofer).

• Sound signal circuit malfunction between Bose

speaker amp. and speaker.
Refer to:

-

AV-456, "Diagnosis Procedure"

(front door speak-

er).

-

AV-459, "Diagnosis Procedure"

(tweeter).

-

AV-462, "Diagnosis Procedure"

(rear door speak-

er).

-

AV-465, "Diagnosis Procedure"

(subwoofer).

• Malfunction in speaker.

Refer to:

-

AV-490, "Removal and Installation"

(front door

speaker).

-

AV-491, "Removal and Installation"

(tweeter).

-

AV-492, "Removal and Installation"

(rear door

speaker).

-

AV-500, "Removal and Installation"

(subwoofer).

• Malfunction in AV control unit.

Refer to

AV-367, "On Board Diagnosis Function"

.

• Malfunction in Bose speaker amp.

Replace Bose speaker amp. Refer to

AV-501, "Re-

moval and Installation"

.