Infiniti QX56 (Z62). Manual — part 697
EXL-80
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C0126 STEERING ANGLE SENSOR SIGNAL
C0126 STEERING ANGLE SENSOR SIGNAL
DTC Logic
INFOID:0000000006213944
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC ERASE
Erase the DTC memory of AFS with CONSULT-III.
>> GO TO 2.
2.
DTC CONFIRMATION
1.
Start the engine.
2.
Turn the steering wheel to the maximum right/left.
3.
Select the self-diagnosis with CONSULT-III.
4.
Check the self-diagnosis result. Refer to
.
Is DTC “C0126” detected?
YES
>> Refer to
.
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006213945
1.
ABS ACTUATOR AND ELECTRICAL UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Check the self-diagnosis result with CONSULT-III. Check that ABS actuator and electrical unit (control unit)
does not detect any DTCs.
Is any DTC detected?
YES
>> Check ABS actuator and electrical unit (control unit).Refer to
.
NO
>> GO TO 2.
2.
DTC ERASE
Erase DTC memory of AFS with CONSULT-III.
Is the memory erased?
YES
>> Inspection end.
NO
>> Replace AFS control unit. Refer to
EXL-135, "Removal and Installation"
DTC No.
Trouble diagnosis name
DTC detection condition
Possible causes
C0126
Steering angle sensor signal
In any of the following conditions
• The steering angle sensor signal
is not received.
• The steering angle sensor signal
error is received.
• Out-of-standard signal (-900
°
-
+900
°
) is received.
• Steering angle sensor
• AFS control unit
C0428 STEERING ANGLE SENSOR CALIBRATION
EXL-81
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
C0428 STEERING ANGLE SENSOR CALIBRATION
DTC Logic
INFOID:0000000006213946
Diagnosis Procedure
INFOID:0000000006213947
1.
STEERING ANGLE SENSOR NEUTRAL POSITION ADJUSTMENT
Perform the steering angle sensor neutral position adjustment.
CAUTION:
Perform the steering angle sensor neutral position adjustment on VDC side. VDC may activate incor-
rectly.
>> Refer to
.
DTC No.
Trouble diagnosis name
DTC detection condition
Possible causes
C0428
Steering angle sensor calibration
The steering angle sensor neutral
position is not recognized.
Steering angle sensor
EXL-82
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000006213948
CAN (Controller Area Network) is the serial transmission for real time application. CAN is the multiplex com-
munication for the vehicle with superior data transmission speed and error detection ability. Many electronic
control units are equipped on the vehicle. These control units do not operate individually, but associates with
other control units by sharing information. In CAN communication, each control unit is connected with two
communication lines (CAN-H and CAN-L). Much information is transmitted with fewer communication lines
than before. Each control unit transmits/receives data and reads the necessary data only.
CAN Communication Signal Chart. Refer to
LAN-27, "CAN COMMUNICATION SYSTEM : CAN System Spec-
DTC Logic
INFOID:0000000006213949
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006213950
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-18, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
DTC No.
Trouble diagnosis name
DTC detection condition
Possible causes
U1000
CAN communication circuit
When AFS control unit does not trans-
mit/receive CAN communication signal
continuously for 2 seconds or more
CAN communication system
U1010 CONTROL UNIT (CAN)
EXL-83
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000006213951
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000006213952
1.
REPLACE AFS CONTROL UNIT
When DTC [U1010] is detected, replace AFS control unit.
>> Replace AFS control unit. Refer to
EXL-135, "Removal and Installation"
DTC No.
Trouble diagnosis name
DTC detection condition
Possible cause
U1010
Control unit (CAN)
AFS control unit detected internal CAN
communication circuit malfunction.
AFS control unit
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