Infiniti EX35. Manual - part 74

AV

STEERING SWITCH SIGNAL B CIRCUIT

AV-77

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Component Inspection

INFOID:0000000003562718

Measure the resistance between the steering switch connector.

JSNIA0215GB

Steering switch

Steering switch

Condition

Resistance value

(

Ω

)

Connector

Terminals

Connector

Terminal

M303

14

M303

17

SOURCE switch ON

 0

MENU UP switch ON

120 – 122

MENU DOWN switch ON

318 – 324

15

VOL DOWN switch ON

0

VOL UP switch ON

120 – 122

AV-78

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

STEERING SWITCH SIGNAL GND CIRCUIT

STEERING SWITCH SIGNAL GND CIRCUIT

Description

INFOID:0000000003508424

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000003508425

1.

CHECK STEERING SWITCH SIGNAL GND CIRCUIT

1.

Disconnect AV control unit connector and spiral cable connector. 

2.

Check continuity between AV control unit harness connector and spiral cable harness connector.

3.

Connect AV control unit connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

Check spiral cable. 
Is the inspection result normal?

YES

>> GO TO 3. 

NO

>> Replace spiral cable.

3.

CHECK GROUND CIRCUIT

1.

Connect AV control unit connector.

2.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-79, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch.

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M81

15

M36

33

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M81

15

Not existed

AV

STEERING SWITCH SIGNAL GND CIRCUIT

AV-79

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Component Inspection

INFOID:0000000003562719

Measure the resistance between the steering switch connector.

JSNIA0215GB

Steering switch

Steering switch

Condition

Resistance value

(

Ω

)

Connector

Terminals

Connector

Terminal

M303

14

M303

17

SOURCE switch ON

 0

MENU UP switch ON

120 – 122

MENU DOWN switch ON

318 – 324

15

VOL DOWN switch ON

0

VOL UP switch ON

120 – 122

AV-80

< ECU DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

AV CONTROL UNIT

ECU DIAGNOSIS

AV CONTROL UNIT

Reference Value

INFOID:0000000003508427

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

TERMINAL LAYOUT

PHYSICAL VALUES

Display Item

Dis-
play

Vehicle status

Remarks

VHCL SPD SIG

On

Vehicle speed >0 km/h (0 MPH)

Changes in indication may be delayed. This is nor-
mal.

Off

Vehicle speed =0 km/h (0 MPH)

PKB SIG

On

Parking brake is applied.

Changes in indication may be delayed. This is nor-
mal.

Off

Parking brake is released.

ILLUM SIG

On

Light switch ON

—

Off

Light switch OFF

IGN SIG

On

Ignition switch ON

—

Off

Ignition switch in ACC position

REV SIG

On

Shift the selector lever to “R” position

Changes in indication may be delayed. This is nor-
mal.

Off

Shift the selector lever other than “R” 
position

JPNIA0012ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

2

(L)

3

(W)

Sound signal front door 
speaker LH and front tweet-
er LH

Output

Ignition 

switch 

ON

Audio output

4

(LG)

5

(L)

Sound signal rear door 
speaker LH

Output

Ignition 

switch 

ON

Audio output

SKIB3609E

SKIB3609E