Infiniti FX35, FX50 (S51). Manual — part 125
AV
U122A AV CONTROL UNIT
AV-273
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
C
D
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G
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A
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P
U122A AV CONTROL UNIT
DTC Logic
INFOID:0000000005475683
Diagnosis Procedure
INFOID:0000000005475684
1.
PERFORM THE SELF-DIAGNOSIS
When U122A is detected, write configuration data with CONSULT-III.
>> Write configuration data with CONSULT-III. Refer to
AV-244, "CONFIGURATION (AV CONTROL
DTC
Display 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.
AV-274
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
U122E AV CONTROL UNIT
U122E AV CONTROL UNIT
DTC Logic
INFOID:0000000005475686
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.
AV
U1232 STEERING ANGLE SENSOR
AV-275
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
C
D
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U1232 STEERING ANGLE SENSOR
DTC Logic
INFOID:0000000005475688
Diagnosis Procedure
INFOID:0000000005475689
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-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION :
.
DTC
Display 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.
AV-276
< DTC/CIRCUIT DIAGNOSIS >
[NAVIGATION (SINGLE MONITOR)]
U1243 FRONT DISPLAY UNIT
U1243 FRONT DISPLAY UNIT
DTC Logic
INFOID:0000000005475745
Diagnosis Procedure
INFOID:0000000005475746
1.
CHECK FRONT DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUITS
Check front display unit power supply and ground circuits. Refer to
AV-291, "FRONT DISPLAY UNIT : Diagno-
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair malfunctioning parts.
2.
CHECK CONTINUITY COMMUNICATION CIRCUITS
1.
Turn ignition switch OFF.
2.
Disconnect front display unit connector and AV control unit connector.
3.
Check continuity between front display unit harness connector and AV control unit harness connector.
4.
Check continuity between front display unit harness connector and ground.
Is inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK COMMUNICATION SIGNAL
1.
Connect front display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between front display unit harness connector and ground.
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.
• front display unit power supply and ground circuit mal-
function is detected.
• malfunction is detected in communication circuits be-
tween front display unit and AV control unit.
• Front display unit power supply and
ground circuit.
• Communication circuits between
front display unit and AV control
unit.
Front display unit
AV control unit
Continuity
Connector
Terminals
Connector
Terminals
M195
9
M210
89
Existed
10
73
Front display unit
Ground
Continuity
Connector
Terminals
M195
9
Not existed
10
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