Nissan Teana J32. Instruction — part 91
AV
U1200 AV CONTROL UNIT
AV-219
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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U1200 AV CONTROL UNIT
Description
INFOID:0000000003765669
Replace the AV control unit if this DTC is displayed. Refer to
AV-378, "Removal and Installation"
.
DTC Logic
INFOID:0000000003765670
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 communication. It operates each system according to communication
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 is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• Composite image signal (AUX and DVD images) is input from DVD player.
• Camera image signal is input from camera control unit.
• Composite image (DVD, AUX and camera images) signal is output to display
unit.
• Sound signal (DVD and AUX sounds) is input from the DVD player.
• Power (signal VCC and inverter VCC) is transmitted to front display unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U1200
Cont Unit
FLASH- ROM
[U1200]
AV control unit malfunction is detected. (FLASH-ROM).
Replace AV control unit.
AV-220
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
U1216 AV CONTROL UNIT
U1216 AV CONTROL UNIT
Description
INFOID:0000000003765671
Replace the AV control unit if this DTC is displayed. Refer to
AV-378, "Removal and Installation"
.
DTC Logic
INFOID:0000000003765672
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 communication. It operates each system according to communication
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 is connected to BCM via CAN communication transmitting/receiving for the
vehicle settings function.
• Composite image signal (AUX and DVD images) is input from DVD player.
• Camera image signal is input from camera control unit.
• Composite image (DVD, AUX and camera images) signal is output to display
unit.
• Sound signal (DVD and AUX sounds) is input from the DVD player.
• Power (signal VCC and inverter VCC) is transmitted to front display unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U1216
CAN CONT
[U1216]
Internal malfunction of AV control unit (CAN controller) is
detected.
Replace AV control unit.
AV
U1231 BOSE AMP.
AV-221
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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U1231 BOSE AMP.
Description
INFOID:0000000003900431
Replace the BOSE amp. if this DTC is displayed. Refer to
AV-386, "Removal and Installation"
.
DTC Logic
INFOID:0000000003900432
Part name
Description
BOSE AMP.
Inputs sound signal from AV control unit and DVD player, and outputs sound sig-
nal to woofer and each speaker.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Action to take
U1231
AMP TEMP
[U1231]
Internal malfunction of BOSE amp. is detected.
Replace BOSE amp.
AV-222
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
U1243 DISPLAY UNIT
U1243 DISPLAY UNIT
Description
INFOID:0000000003765673
DTC Logic
INFOID:0000000003765674
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000003901175
1.
CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to
AV-236, "DISPLAY UNIT : Diagnosis Procedure"
.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK CONTINUITY COMMUNICATION CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
4.
Check continuity between display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
Part name
Description
DISPLAY UNIT
• Display image is controlled by the serial communication from AV control unit.
• It receives the power (signal VCC and inverter VCC) from the AV control unit
and operates.
• RGB image signal is input from AV control unit (RGB, RGB area and RGB syn-
chronizing).
• Composite image (DVD, AUX and camera images) signal is input from AV con-
trol unit.
• Synchronize signal (HP, VP) is output to AV control unit.
DTC
Display contents of
CONSULT-III
DTC Detection Condition
Possible causes
U1243
FRONT DISP CONN
[U1243]
When either one of the following items is detected:
• display unit power supply and ground circuits are mal-
functioning.
• serial communication circuits between display unit and
AV control unit are malfunctioning.
• serial communication signal between display unit and
AV control unit is malfunctioning.
• Display unit power supply and
ground circuits.
• Serial communication circuits be-
tween display unit and AV control
unit
Display unit
AV control unit
Continuity
Connector
Terminals
Connector
Terminals
M49
11
M129
56
Existed
22
44
Display unit
Ground
Continuity
Connector
Terminals
M49
11
Not existed
22
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