Nissan Xterra. Manual - part 18

AV-64

< SYSTEM DESCRIPTION >

[DISPLAY AUDIO]

DIAGNOSIS SYSTEM (AUDIO UNIT)

• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even

if the condition is normal at the next ignition ON cycle. 

• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error

record display) with the Delete log switch.

Error item

Some error items may be displayed simultaneously according to the cause. If some error items are displayed

simultaneously, the detection of the cause can be performed by the combination of display items

AV COMM Diagnosis

• Displays the communication status between audio unit (master

unit) and each unit.

• The error counter displays OK if any malfunction was not detected

in the past and displays 0 if a malfunction is detected. It increases

by 1 if the condition is normal at the next ignition switch ON cycle.

The upper limit of the counter is 39.

• The error counter is erased if Reset is pressed.

NOTE:

“???” indicates UNKWN.

Display type of occurrence 

frequency

Error history display item

Count up method A

AV communication line, control unit (AV)

Count up method B

Other than the above

JSNIA2807GB

Error item

Description

Possible cause

CONTROL UNIT (AV)

AV communication circuit initial diagnosis 
malfunction is detected.

Replace the audio unit if the malfunction 
occurs constantly.
Refer to 

AV-108, "Removal and Installa-

tion"

.

• AV COMM CIRCUIT
• H/F Unit Connection Error

When one of the following is detected:
• malfunction is detected in Bluetooth

®

 

control unit power supply and ground cir-
cuits.

• malfunction is detected in AV communi-

cation circuits between audio unit and 
Bluetooth

®

 control unit.

• Bluetooth

®

 control unit power supply or 

ground circuits.
Refer to 

AV-86, "BLUETOOTH® CON-

TROL UNIT : Diagnosis Procedure"

.

• AV communication circuits between au-

dio unit and Bluetooth

®

 control unit.

Items

Status

(Current)

Counter

(Past)

C Rx(BTHF-ITM)

OK / ???

OK / 0 – 39

JSNIA2813ZZ

AV

DIAGNOSIS SYSTEM (AUDIO UNIT)

AV-65

< SYSTEM DESCRIPTION >

[DISPLAY AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Delete Unit Connection Log

Deletes any unit connection records and error records from the

audio unit memory (clears the records of the unit that has been

removed).

Initialize Settings

Deletes data stored from the audio unit.

AWNIA2637GB

JSNIA0155GB

AV-66

< ECU DIAGNOSIS INFORMATION >

[DISPLAY AUDIO]

AUDIO UNIT

ECU DIAGNOSIS INFORMATION

AUDIO UNIT

Reference Value

INFOID:0000000009485179

TERMINAL LAYOUT

PHYSICAL VALUES

AWNIA2924ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

Ignition 

switch

Operation

2

(BR)

3

(L)

Sound signal front speaker 
LH

Output

ON

Sound output

4

(G)

5

(B)

Sound signal rear speaker 
LH

Output

ON

Sound output

6 

(V)

Ground STRG SW A

Input

ON

Press and hold MODE 
switch.

0 V

Press and hold   switch.

1.34 V

Press and hold   switch.

2.45 V

Press and hold 

 

switch.

3.43 V

Except for above.

5.0 V

7

(G/B)

Ground ACC power supply

Input

ACC

—

Battery voltage

9

 (R)

8

(GR)

Illumination control signal

Input

ON

Headlamps ON

Battery voltage

SKIB3609E

SKIB3609E

AV

AUDIO UNIT

AV-67

< ECU DIAGNOSIS INFORMATION >

[DISPLAY AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

11

(LG)

12

(R)

Sound signal front speaker 
RH

Output

ON

Sound output

13

(GR)

14

(BG)

Sound signal rear speaker 
RH

Output

ON

Sound output

15

(BG)

–

STRG SW ground

Output

–

–

–

16 

(LG)

Ground  STRG SW B

Input

ON

Press VOL DOWN switch

 0 V

Press VOL UP switch.

1.34 V

Press  

switch.

2.45 V

Except for above.

5.0 V

18

(SB)

Ground Vehicle speed signal

Input

ON

When vehicle speed is ap-
prox. 40 km/h (25 MPH)

19

(Y)

Ground Battery power supply

Input

OFF

—

Battery voltage

20

(B)

—

GND

—

—

—

—

25

(W)

24

(B)

Telephone audio in

—

—

—

—

28

(R)

—

MCAN2  H

—

—

—

—

29

(G)

—

MCAN2  L

—

—

—

—

30

—

MCAN shield

—

—

—

—

31

(L)

—

MCAN1  H

—

—

—

—

32

(W)

—

MCAN1  L

—

—

—

—

47

(B)

—

EQ3

—

—

—

—

53

(R)

—

V BUS signal

—

—

—

—

54

(B)

—

USB ground

—

—

—

—

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

Ignition 

switch

Operation

SKIB3609E

SKIB3609E

JSNIA0012GB