INFINITI QX56 2011 Factory Service Manual

AV
U121C AV CONTROL UNITAV-133
< DTC/CIRCUIT DIAGNOSIS >
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U121C AV CONTROL UNIT
DTC LogicINFOID:0000000006216277
Diagnosis ProcedureINFOID:0000000006216278
1.CHECK MUSIC BOX FUNCTION
Is music box function normal?
YES >> Malfunction may be detected transitory.
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
DTCDisplay contents of
CONSULT-III DTC detection condition Possible malfunction factor
U121C HDD ACCESS
[U121C] AV control unit malfunction is detected.  If the music box function has no
malfunctions, then there is a possi-
bility of the detection of a temporary
malfunction.
 Replace the AV control unit if the
malfunction occurs constantly.
Refer to AV- 2 1 2 , "
Removal and In-
stallation".
Revision: 2010 May2011 QX56

AV-134
< DTC/CIRCUIT DIAGNOSIS >
U121D AV CONTROL UNIT
U121D AV CONTROL UNIT
DTC LogicINFOID:0000000006216279
Diagnosis ProcedureINFOID:0000000006216280
1.CHECK PLAYBACK OF A DISK (CD)
Can a disk (CD) be played?
YES >> Malfunction may be detected transitory.
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
DTCDisplay contents of
CONSULT-III DTC detection condition Possible malfunction factor
U121D DSP CONN
[U121D]
AV control unit malfunction is detected.  If a disc can be played, then there
is a possibility of the detection of a
temporary malfunction.
 Replace the AV control unit if the malfunction occurs constantly.
Refer to AV- 2 1 2 , "
Removal and In-
stallation".
Revision: 2010 May2011 QX56

AV
U121E AV CONTROL UNITAV-135
< DTC/CIRCUIT DIAGNOSIS >
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U121E AV CONTROL UNIT
DTC LogicINFOID:0000000006216281
Diagnosis ProcedureINFOID:0000000006216282
1.CHECK PLAYBACK OF A DISK (CD)
Can a disk (CD) be played?
YES >> Malfunction may be detected transitory.
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
DTCDisplay contents of
CONSULT-III DTC detection condition Possible malfunction factor
U121E DSP COMM
[U121E]
AV control unit malfunction is detected.  If a disc can be played, then there
is a possibility of the detection of a
temporary malfunction.
 Replace the AV control unit if the malfunction occurs constantly.
Refer to AV- 2 1 2 , "
Removal and In-
stallation".
Revision: 2010 May2011 QX56

AV-136
< DTC/CIRCUIT DIAGNOSIS >
U1225 AV CONTROL UNIT
U1225 AV CONTROL UNIT
DTC LogicINFOID:0000000006216283
DTC DETECTION LOGIC
DTCDisplay contents of CON-
SULT-III DTC detection condition Possible malfunction factor
U1225 USB CONTROLLER
[U1225]
USB connection malfunction is detected. Check that the connection to the USB con-
nector is normal.
Revision: 2010 May2011 QX56

AV
U1227 AV CONTROL UNITAV-137
< DTC/CIRCUIT DIAGNOSIS >
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U1227 AV CONTROL UNIT
DTC LogicINFOID:0000000006216284
Diagnosis ProcedureINFOID:0000000006216285
1.CHECK PLAYBACK OF A DISK (DVD)
Can a disc (DVD) be played?
YES >> Malfunction may be detected transitory.
NO >> Replace AV control unit. Refer to AV-212, "
Removal and Installation".
DTCDisplay contents of
CONSULT-III DTC detection condition Possible malfunction factor
U1227 DVD COMM [U1227] AV control unit malfunction is detected.  If DVD can be played, then there is
a possibility of the detection of a
temporary malfunction.
 Replace the AV control unit if the malfunction occurs constantly.
Refer to AV- 2 1 2 , "
Removal and In-
stallation".
Revision: 2010 May2011 QX56

AV-138
< DTC/CIRCUIT DIAGNOSIS >
U1228 AV CONTROL UNIT
U1228 AV CONTROL UNIT
DTC LogicINFOID:0000000006216286
DTC DETECTION LOGIC
DTCDisplay contents of CON-
SULT-III DTC detection condition Possible malfunction factor
U1228 SUB CPU CONN [U1228] AV control unit malfunction is detected. Replace the AV control unit if the malfunction
occurs constantly.
Refer to
AV- 2 1 2 , "
Removal and Installation".
Revision: 2010 May2011 QX56

AV
U1229 AV CONTROL UNITAV-139
< DTC/CIRCUIT DIAGNOSIS >
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U1229 AV CONTROL UNIT
DTC LogicINFOID:0000000006216287
DTC DETECTION LOGIC
DTC Display contents of CON-
SULT-III DTC detection condition Possible malfunction factor
U1229 iPod CERTIFICATION
[U1229] AV control unit malfunction is detected. Replace the AV control unit if the malfunction
occurs constantly.
Refer to
AV- 2 1 2 , "
Removal and Installation".
Revision: 2010 May2011 QX56

AV-140
< DTC/CIRCUIT DIAGNOSIS >
U122A AV CONTROL UNIT
U122A AV CONTROL UNIT
DTC LogicINFOID:0000000006216288
Diagnosis ProcedureINFOID:0000000006216289
1.PERFORM THE SELF-DIAGNOSIS
When U122A is detected, write conf iguration data with CONSULT-III.
>> Write configuration data with CONSULT-III. Refer to AV-39, "
CONSULT-III Function".
DTCDisplay contents of
CONSULT-III DTC detection condition Action to take
U122A CONFIG UNFINISH
[U122A] The writing of configuration data is incomplete. Write configuration data with CON-
SULT-III.
Revision: 2010 May2011 QX56

AV
U122E AV CONTROL UNITAV-141
< DTC/CIRCUIT DIAGNOSIS >
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U122E AV CONTROL UNIT
DTC LogicINFOID:0000000006216290
DTC DETECTION LOGIC
DTC Display contents of CON-
SULT-III DTC detection condition Possible malfunction factor
U122E Built-in AUDIO CONN
[U122E] AV control unit malfunction is detected. Replace the AV control unit if the malfunction
occurs constantly.
Refer to
AV- 2 1 2 , "
Removal and Installation".
Revision: 2010 May2011 QX56

AV-142
< DTC/CIRCUIT DIAGNOSIS >
U1232 STEERING ANGLE SENSOR
U1232 STEERING ANGLE SENSOR
DTC LogicINFOID:0000000006216291
Diagnosis ProcedureINFOID:0000000006216292
1.ADJUST THE PREDICTIVE COURSE LINE CENTER POSITION OF THE STEERING ANGLE SENSOR
When U1232 is detected, adjust the predictive course line center position of the steering angle sensor.
>> Adjusts the steering angle sensor neutral position on ABS actuator and electrical unit (control unit)
side. Refer to BRC-64, "
Work Procedure".
DTCDisplay contents of
CONSULT-III DTC detection condition Possible malfunction factor
U1232 ST ANGLE SEN CALIB
[1232] Predictive course line center position adjustment of the
steering angle sensor is incomplete. Adjust the predictive course line cen-
ter position of the steering angle sen-
sor.
Revision: 2010 May2011 QX56