Nissan Frontier D40. Manual - part 17

AV-60

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000005274908

Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal
circuits.

Diagnosis Procedure

INFOID:0000000005274909

Regarding Wiring Diagram information, refer to 

AV-65, "Wiring Diagram"

.

1.

CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE

1.

Turn ignition switch OFF.

2.

Disconnect Bluetooth control unit connector and microphone
connector.

3.

Check continuity between Bluetooth control unit harness con-
nector B141 (A) and microphone harness connector R8 (B).

4.

Check continuity between Bluetooth control unit harness connector B141 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> Repair harness or connector.

2.

CHECK MICROPHONE POWER SUPPLY

1.

Connect Bluetooth control unit connector and microphone con-
nector.

2.

Turn ignition switch ON.

3.

Check voltage between microphone harness connector R8 ter-
minal 4 and ground.

Is voltage reading approx. 5 volts?

YES

>> GO TO 3

NO

>> Replace Bluetooth control unit. Refer to 

AV-90,

"Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL

A

B

Continuity

Connector

Terminal

Connector

Terminal

B141

7

R8

1

Yes

8

2

29

4

A

—

Continuity

Connector

Terminal

B141

7

Ground

No

8

29

WKIA5795E

4 - Ground

: Approx. 5V

WKIA5796E

AV

MICROPHONE SIGNAL CIRCUIT

AV-61

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Check signal between Bluetooth control unit harness connector
B141 terminals 7 and 8 with CONSULT-III or and oscilliscope.

Are voltage readings as specified?

YES

>> Replace Bluetooth control unit. Refer to 

AV-90, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-92, "Removal and Installation"

.

Connector

(+)

(-)

Reference signal

Terminal

Terminal

B141

7

8

While speaking into MIC

ALNIA0934GB

PKIB5037J

AV-62

< ECU DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

AUDIO UNIT

ECU DIAGNOSIS

AUDIO UNIT

Reference Value

INFOID:0000000005274910

TERMINAL LAYOUT

PHYSICAL VALUES

AWNIA0795ZZ

Terminal

 (Wire color)

Item

Signal 

input/

output

Condition

Reference value

(Approx.)

+

–

2 

(BR)

1 

(L)

Audio sound signal 
front LH

Output

Ignition 

switch 

ON

Receive audio sig-
nal

4 

(LG)

3 

(R)

Audio sound signal 
front RH

Output

Ignition 

switch 

ON

Receive audio sig-
nal

6 

(Y)

Ground

Battery power

Input

–

–

Battery voltage

7 

(GR)

Ground

Illumination control 
signal

Input

Ignition 

switch 

ON

Illumination control 
switch is operated 
by lighting switch in 
1st position.

Changes between 0 and 12V

8 

(R)

Ground

Illumination signal

Input

OFF

Lighting switch is in 
1st position.

Battery voltage

Lighting switch is 
OFF.

0V

9

–

Shield

–

–

–

0V

10 

(G/B)

Ground

ACC signal

Input

Ignition 

switch 

ON

–

Battery voltage

SKIA0177E

SKIA0177E

AV

AUDIO UNIT

AV-63

< ECU DIAGNOSIS >

[PREMIUM AUDIO (KING CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

14 

(G)

13 

(B)

Audio sound signal 
rear LH

Output

Ignition 

switch 

ON

Receive audio sig-
nal

16 

(GR)

15 

(O)

Audio sound signal 
rear RH

Output

Ignition 

switch 

ON

Receive audio sig-
nal

42

(R)

41

(G)

Satellite radio au-
dio signal LH

Input

Ignition 

switch 

ON

Satellite radio tuner 
operating

44

(B)

43

(W)

Satellite radio au-
dio signal RH

Input

Ignition 

switch 

ON

Satellite radio tuner 
operating

45

–

Ground

–

–

–

0V

46

–

Data ground

–

–

–

0V

48

(O)

–

REQ (SAT

→

AV 

control unit)

Input

Ignition 

switch 

ON

–

—

49

(P)

–

RX (SAT

→

AV con-

trol unit)

Input

Ignition 

switch 

ON

–

—

50

(L)

–

TX (AV control 
unit

→

SAT)

Input

Ignition 

switch 

ON

–

—

62

(W)

61 

(B)

Telephone signal 
input

Input

Ignition 

switch 

ACC/ON

Bluetooth control 

unit sends audio 

signal

63

(R)

–

Mute control

–

–

–

–

64

–

Shield

–

–

–

0V

Terminal

 (Wire color)

Item

Signal 

input/

output

Condition

Reference value

(Approx.)

+

–

SKIA0177E

SKIA0177E

SKIB3609E

SKIB3609E

SKIB3609E