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
.
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 >
[BOSE AUDIO WITH NAVIGATION]
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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 >
[BOSE AUDIO WITH NAVIGATION]
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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
.
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
August 2012
2012 Pathfinder
AV
U1204 GPS COMM
AV-313
< DTC/CIRCUIT DIAGNOSIS >
[BOSE AUDIO WITH NAVIGATION]
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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
August 2012
2012 Pathfinder
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