Nissan Pathfinder (2012 year). Manual - part 41

 

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Nissan Pathfinder (2012 year). Manual - part 41

 

 

AV-146

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

• The counter upper limit is 39. Any counts exceeding 39 are ignored. The counter can be reset (no error

record display) with the “Delete log” switch or CONSULT.

Count up method B

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

the condition is normal at the next IGN 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 or CONSULT.

Vehicle CAN Diagnosis

• CAN communication status and error counter is displayed.

• 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.

AV COMM Diagnosis

• AV communication status and error counter is displayed.

• 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.

Delete Unit Connection Log

Deletes any unit connection records and error records from the AV

control unit memory. (Clear the records of the unit that has been

removed)

Initialize Settings

Display method of occur-

rence frequency

Error history display item

Count up method A

CAN communication line, control unit (CAN), AV communication line, control unit (AV communica-
tion)

Count up method B

Other than above

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August 2012

2012 Pathfinder

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-147

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

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Initializes the AV control unit memory.

AV CONTROL UNIT : CONSULT Function

INFOID:0000000007347700

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

Self-diagnosis results display item

DATA MONITOR

Display Item List

A/C AND AV SWITCH ASSEMBLY

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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

Refer to

CAN COMM CIRCUIT [U1000]

AV-150, "Description"

CONTROL UNIT (CAN) [U1010]

AV-151, "Description"

Control Unit FLASH-ROM [U1200]

AV-152, "Description"

CAN CONT [U1216]

AV-153, "Description"

SWITCH CONN [U1240]

AV-154, "Description"

FRONT DISP CONN [U1243]

AV-155, "Description"

DVD DECK CONN [U1248]

AV-157, "Description"

SAT CONN [U1255]

AV-158, "Description"

HAND FREE CONN [U1256]

AV-159, "Description"

AV COMM CIRCUIT [U1300]

AV-160, "Description"

CONTROL UNIT (AV) [U1310]

AV-161, "Description"

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-148

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

A/C AND AV SWITCH ASSEMBLY : Component Function Check

INFOID:0000000007347701

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

• 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.

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2012 Pathfinder

AV

DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)

AV-149

< SYSTEM DESCRIPTION >

[BOSE AUDIO WITHOUT NAVIGATION]

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DIAGNOSIS SYSTEM (BLUETOOTH CONTROL UNIT)

Diagnosis Description

INFOID:0000000007347702

The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically

every ignition cycle during control unit initialization. The second diagnostic check is performed by the techni-

cian using the steering wheel audio control switches prior to trouble diagnosis.

BLUETOOTH CONTROL UNIT INITIALIZATION CHECKS

• Internal control unit failure

• Bluetooth antenna connection open or shorted

• Steering wheel audio control switches (SEND/END) stuck closed

• Vehicle speed pulse count

• Microphone connection test (with playback to operator)

• Bluetooth inquiry check

OPERATION PROCEDURE

1. Turn ignition switch to ACC or ON.

2. Wait for the Bluetooth system to complete initialization. This may take up to 10 seconds.
3. Press and hold the steering wheel audio control switch 

button for at least 5 seconds. The Bluetooth system will begin to

play a verbal prompt.

4. While the prompt is playing, press and hold the steering wheel

audio control switch   button until you hear the “Diagnostics

mode” prompt. The Bluetooth system will sound a 5 second

beep.

5. While the beep is sounding, press and hold the steering wheel

audio control switch END button again until you hear prompts.

6. The Bluetooth system has now entered into the diagnostic

mode. Results of the diagnostic checks will be verbalized to the

technician. Refer to 

AV-149, "Work Flow"

.

7. After the failure records are reported, an interactive microphone

test will be performed. Follow the voice prompt. If the micro-

phone test fails refer to 

AV-149, "Work Flow"

.

8. Self-diagnosis mode is complete when the voice prompt says “All diagnostic functions completed”.

Work Flow

INFOID:0000000007347703

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Failure Message

Action

“Internal failure”

Replace Bluetooth control unit. Refer to 

AV-264, "Removal and Installation"

.

“Bluetooth antenna open”

1.

Inspect harness connection.

2.

Replace Bluetooth antenna. Refer to 

AV-264, "Removal and Installation"

.

“Bluetooth antenna shorted”

“Phone/Send for Hands Free System is stuck”

Check steering wheel audio control switches. Refer to 

AV-196, "Description"

.

“Phone/End for the Hands Free System is stuck”

“Microphone test” (failed interactive test)

1.

Inspect harness between Bluetooth control unit and microphone.

2.

Replace microphone. Refer to 

AV-263, "Removal and Installation"

.

August 2012

2012 Pathfinder

AV-150

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1000 CAN COMM CIRCUIT

DTC/CIRCUIT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000007347704

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:0000000007347705

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007347706

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

U1010 CONTROL UNIT (CAN)

AV-151

< DTC/CIRCUIT DIAGNOSIS >

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U1010 CONTROL UNIT (CAN)

Description

INFOID:0000000007347707

Initial diagnosis of AV control unit.

DTC Logic

INFOID:0000000007347708

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000007347709

1.

REPLACE AV CONTROL UNIT

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

AV-255, "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-152

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

U1200 AV CONTROL UNIT

U1200 AV CONTROL UNIT

Description

INFOID:0000000007347710

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

AV-255, "Removal and Installation"

.

DTC Logic

INFOID:0000000007347711

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-255, "Removal and 

Installation"

.

August 2012

2012 Pathfinder

AV

U1216 AV CONTROL UNIT

AV-153

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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U1216 AV CONTROL UNIT

Description

INFOID:0000000007347712

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

AV-255, "Removal and Installation"

.

DTC Logic

INFOID:0000000007347713

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

U1216

CAN CONT
[U1216]

Internal malfunction of AV control unit (CAN controller) is 
detected.

Replace AV control unit. 
Refer to 

AV-255, "Remov-

al and Installation"

.

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

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