Nissan Frontier D40. Manual — part 36

AV-136

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000005274965

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

Diagnosis Procedure

INFOID:0000000005274966

Regarding Wiring Diagram information, refer to

AV-141, "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-137

< COMPONENT DIAGNOSIS >

[PREMIUM AUDIO (CREW 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-138

< ECU DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

AUDIO UNIT

ECU DIAGNOSIS

AUDIO UNIT

Reference Value

INFOID:0000000005274967

TERMINAL LAYOUT

PHYSICAL VALUES

AWNIA0795ZZ

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

(Approx.)

+

–

2

(W)

1

(B)

Audio sound signal
front LH

Output

Ignition

switch

ON

Receive audio sig-
nal

4

(Y)

3

(BR)

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

12

(G/W)

Ground

Amp ON signal

Output

Ignition

switch

ON

–

Battery voltage

SKIA0177E

SKIA0177E

AV

AUDIO UNIT

AV-139

< ECU DIAGNOSIS >

[PREMIUM AUDIO (CREW CAB)]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

14

(BR)

13

(B/R)

Audio sound signal
rear LH

Output

Ignition

switch

ON

Receive audio sig-
nal

16

(L)

15

(B/W)

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