Nissan Pathfinder (2012 year). Manual - part 61

AV-306

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Initializes the AV control unit memory.

AV CONTROL UNIT : CONSULT Function

INFOID:0000000007347832

CONSULT can display each diagnostic item using the diagnostic test modes shown following.

Self-diagnosis results

• In CONSULT self-diagnosis, self-diagnosis results and error history are displayed collectively.

• The current malfunction indicates “CRNT”. The past malfunction indicates “PAST”.

• The timing is displayed as “0” if any of the error codes [U1000], [U1010], [U1300] and [U1310] is detected.

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

Self-diagnosis results display item

ALNIA0240GB

MULTI AV diagnosis mode

Description

ECU IDENTIFICATION

The part number of AV control unit can be checked.

SELF DIAGNOSTIC RESULT

Displays AV control unit self-diagnosis results.

DATA MONITOR

Displays AV control unit input/output data in real time.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

Error item

Description

Possible malfunction factor/Action to take

CAN COMM CIRCUIT[U1000]

CAN communication malfunction is detect-
ed

Perform diagnosis with CONSULT, and 
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to 

AV-309, "Description"

.

CONTROL UNIT (CAN) [U1010]

CAN initial diagnosis malfunction is detect-
ed

Replace the AV control unit

CONTROL UNIT (AV) [U1310]

AV communication circuit initial diagnosis 
malfunction is detected

Control Unit FLASH-ROM [U1200]

AV control unit malfunction is detected

Gyro NO CONN [U1201]

CAN CONT [U1216]

BLUETOOTH CONN [U1217]

HDD CONN [U1218]

HDD READ [U1219]

XM SERIAL COMM [U1220]

HDD WRITE [U121A]

HDD COMM [U121B]

HDD ACCESS [U121C]

DSP CONN [U121D]

DSP COMM [U121E]

INTERNAL COMM [U121F]

AV control unit power supply and ground 
circuit

August 2012

2012 Pathfinder

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-307

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

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DATA MONITOR

Display Item List

A/C AND AV SWITCH ASSEMBLY
A/C AND AV SWITCH ASSEMBLY : Component Function Check

INFOID:0000000007347833

A/C and AV switch assembly self-diagnosis function

Description

The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.

Self-diagnosis mode

GPS COMM [U1204]

GPS malfunction is detected

An intermittent error caused by strong radio 
interference may be detected unless any 
symptoms (GPS reception error, etc.) oc-
cur.
Replace the AV control unit if the malfunc-
tion occurs constantly.

GPS ROM [U1205]

GPS RAM [U1206]

GPS RTC [U1207]

FRONT DISP CONN [U1243]

• Display unit power supply and ground 

circuit malfunction is detected

• Malfunction is detected on communica-

tion circuit between display unit and AV 
control unit

• Malfunction is detected on communica-

tion signal between display unit and AV 
control unit

• Display unit power supply and ground 

circuit

• Communication circuit between display 

unit and AV control unit

GPS ANTENNA CONN [U1244]

GPS antenna connection malfunction is de-
tected

GPS antenna

XM ANTENNA CONN [U1258]

Poor connection is detected in satellite ra-
dio antenna

Satellite radio antenna

• AV COMM CIRCUIT [U1300]
• SWITCHE CONN [U1240]

• Multifunction switch power supply and 

ground circuit malfunction is detected

• A malfunction is detected in AV commu-

nication circuit between AV control unit 
and multifunction switch

• A malfunction is detected in AV commu-

nication signal between AV control unit 
and multifunction switch

• Multifunction switch power supply and 

ground circuits

• AV communication circuit between AV 

control unit and multifunction switch

Error item

Description

Possible malfunction factor/Action to take

Display item [unit]

ALL

SIGNALS

SELECTION 

FROM MENU

Description

VHCL SPD SIG [ON/OFF]

X

X

Displays “ON” when vehicle speed > 0 km/h. Displays “OFF” when ve-
hicle speed = 0 km/h.

PKB SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of parking brake switch.

ILLUM SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of lighting switch.

IGN SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of ignition switch.

REV SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of back-up lamp switch.

August 2012

2012 Pathfinder

AV-308

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

• Press the “BACK” button and the “UP” button within 10 seconds

after turning the ignition switch from OFF to ACC and hold them for

3 seconds or more. When the self-diagnosis mode starts, a beep

will sound and all LED indicators of the switch will illuminate.

• The continuity of each switch and control dial of the A/C and AV

switch assembly can be checked. If the switch is operating nor-

mally, the system will beep and the LED’s will illuminate when each

switch is operated.

Finishing self-diagnosis mode

Self-diagnosis mode is canceled when the ignition switch is turned OFF.

AWIIA0171GB

August 2012

2012 Pathfinder

AV

U1000 CAN COMM CIRCUIT

AV-309

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000007347834

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each

control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to 

LAN-13, "How to Use CAN Communication Signal Chart"

.

DTC Logic

INFOID:0000000007347835

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007347836

1.

PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check “Self Diagnostic Result” of “MULTI AV”. 
Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to “LAN system”. Refer to 

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to GI section. Refer to 

GI-37, "Intermittent Incident"

.

DTC

Display contents of CON-

SULT

Diagnostic item is detected when ...

Probable malfunction location

U1000

CAN COMM CIRCUIT

When AV control unit is not transmitting or re-
ceiving CAN communication signal for 2 sec-
onds or more.

CAN communication system

August 2012

2012 Pathfinder

AV-310

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1010 CONTROL UNIT (CAN)

U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000007347837

Initial diagnosis of AV control unit.

DTC Logic

INFOID:0000000007347838

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007347839

1.

REPLACE AV CONTROL UNIT

When DTC U1010 is detected, replace AV control unit. Refer to 

AV-420, "Removal and Installation"

.

>> Inspection End.

DTC

Display contents of CON-

SULT

Diagnostic item is detected when ...

Probable malfunction location

U1010

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detected

AV control unit

August 2012

2012 Pathfinder

AV

U1200 AV CONTROL UNIT

AV-311

< DTC/CIRCUIT DIAGNOSIS >

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U1200 AV CONTROL UNIT

Description

INFOID:0000000007347840

Replace the AV control unit if this DTC is displayed. Refer to 

AV-420, "Removal and Installation"

.

DTC Logic

INFOID:0000000007347841

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system  and it is connected to each control 

unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

DTC

Display contents of CONSULT

DTC Detection Condition

Action to take

U1200

Control Unit
FLASH- ROM
[U1200]

An internal malfunction is detected in AV control unit 
(FLASH-ROM).

Replace AV control unit. Re-
fer to 

AV-420, "Removal and 

Installation"

.

August 2012

2012 Pathfinder

AV-312

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

U1201 AV CONTROL UNIT

U1201 AV CONTROL UNIT

Description

INFOID:0000000007347842

Replace the AV control unit if this DTC is displayed. Refer to 

AV-420, "Removal and Installation"

.

DTC Logic

INFOID:0000000007347843

DTC DETECTION LOGIC

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system  and it is connected to each control 

unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

DTC

CONSULT display

Detection condition

Action to take

U1201

GYRO NO CONN
[U1201]

An internal malfunction is detected in AV control unit (gy-
rocompass disconnection).

Replace AV control unit. Refer 
to 

AV-420, "Removal and Instal-

lation"

.

August 2012

2012 Pathfinder

AV

U1204 GPS COMM

AV-313

< DTC/CIRCUIT DIAGNOSIS >

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U1204 GPS COMM

Description

INFOID:0000000007347844

Replace the AV control unit if this DTC is displayed. Refer to 

AV-420, "Removal and Installation"

.

DTC Logic

INFOID:0000000007347845

DTC DETECTION LOGIC

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system  and it is connected to each control 

unit by means of communication. It operates each system according to com-
munication signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and combination meter via CAN communication to ob-

tain necessary information for the vehicle information function.

• It inputs the automatic brightness ON/OFF signals that are required for the dis-

play dimming control.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

DTC

CONSULT display

Detection condition

Action to take

U1204

GPS COMM
[U1204]

An internal malfunction is detected in AV control unit (GPS 
malfunction).

Replace AV control unit. Refer 
to 

AV-420, "Removal and Instal-

lation"

.

August 2012

2012 Pathfinder