Nissan Frontier. Manual - part 19

AV-68

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

REAR DOOR SPEAKER

REAR DOOR SPEAKER

Description

INFOID:0000000010227920

The audio unit sends audio signals to the rear door speakers using the rear door speaker circuits.

Diagnosis Procedure

INFOID:0000000010227921

Regarding Wiring Diagram information, refer to 

AV-72, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit and speaker connectors for the following:

•  Proper connection

•  Damage

•  Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the terminals or connectors.

2.

CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M12 and suspect rear door speaker connector.

2. Check continuity between audio unit connector M12 and suspect rear door speaker connector.

3. Check continuity between audio unit connector M12 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK FRONT DOOR SPEAKER SIGNAL

1. Connect audio unit connector M12 and suspect rear door speaker connector.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check signal between the terminals of audio unit connector M12.

Audio unit

Rear door speaker

Continuity

Connector

Terminal

Connector

Terminal

M12

4

D207 (LH) 

1

Yes

5

2

13

D307 (RH) 

1

14

2

Audio unit

Ground

Continuity

Connector

Terminal

M12

4

—

No

5

13

14

Audio unit connector M12

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

REAR DOOR SPEAKER

AV-69

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO (FOR MEXICO)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace rear door speaker. Refer to 

AV-87, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-84, "Removal and Installation"

.

4

5

Audio signal output

13

14

SKIB3609E

AV-70

< ECU DIAGNOSIS INFORMATION >

[BASE AUDIO (FOR MEXICO)]

AUDIO UNIT

ECU DIAGNOSIS INFORMATION

AUDIO UNIT

Reference Value

INFOID:0000000010227922

TERMINAL LAYOUT

PHYSICAL VALUES

AWNIA3314ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

2

(BR)

3

(L)

Sound signal front door 
speaker and  front tweeter 
LH

Output

Ignition 

switch 

ON

Audio output

4

(G)

5

(B)

Sound signal rear door 
speaker LH

Output

Ignition 

switch 

ON

Audio output

7

(G/B)

Ground ACC power supply

Input

Ignition 

switch 

ACC or 

ON

—

Battery voltage

8

(GR)

Ground ILL control

Input

Ignition 

switch 

ACC or 

ON

—

0V

9

(R)

Ground Light switch

Input

Ignition 

switch 

ACC or 

ON

—

Battery voltage

SKIB3609E

SKIB3609E

AV

AUDIO UNIT

AV-71

< ECU DIAGNOSIS INFORMATION >

[BASE AUDIO (FOR MEXICO)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

11

(LG)

12

(R)

Sound signal front door 
speaker and front tweeter 
RH

Output

Ignition 

switch 

ON

Voice output

13

(GR)

14

(BG)

Sound signal rear door 
speaker RH

Output

Ignition 

switch 

ON

Voice output

19

(Y)

Ground Battery power supply

Input

Ignition 

switch 

OFF

—

Battery voltage

22

(B)

Ground AM-FM main antenna

Input

ON

—

5.0 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

SKIB3609E

SKIB3609E