Infiniti QX56 (Z62). Manual — part 217
CCS
U0126 STRG SEN CAN 1
CCS-135
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C
D
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F
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B
N
P
A
U0126 STRG SEN CAN 1
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC Logic
INFOID:0000000006224386
DTC DETECTION LOGIC
NOTE:
If DTC “U0126” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U0126” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U0126” detected as the current malfunction?
YES
>> Refer to
CCS-135, "ADAS CONTROL UNIT : Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
ADAS CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006224387
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0126” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-145, "ADAS CONTROL UNIT : DTC Logic"
NO
>> GO TO 2.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
ICC SENSOR
ICC SENSOR : DTC Logic
INFOID:0000000006224388
DTC DETECTION LOGIC
NOTE:
If DTC “U0126” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
U0126
(130)
STRG SEN CAN CIR1
If ADAS control unit detects an error signal
that is received from steering angle sensor via
CAN communication
Steering angle sensor
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U0126
STRG SEN CAN CIR1
If ICC sensor detects an error signal that is re-
ceived from steering angle sensor via ADAS
control unit
Steering angle sensor
CCS-136
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
U0126 STRG SEN CAN 1
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U0126” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”.
Is “U0126” detected as the current malfunction?
YES
>> Refer to
CCS-136, "ICC SENSOR : Diagnosis Procedure"
.
NO
>> Refer to
GI-40, "Intermittent Incident"
.
ICC SENSOR : Diagnosis Procedure
INFOID:0000000006224389
1.
CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0126” in “Self Diagnostic Result” of “LASER”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-145, "ICC SENSOR : DTC Logic"
NO
>> GO TO 2.
2.
CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the ICC sensor. Refer to
CCS
U0235 ICC SENSOR CAN 1
CCS-137
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C
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A
U0235 ICC SENSOR CAN 1
DTC Logic
INFOID:0000000006224390
DTC DETECTION LOGIC
NOTE:
If DTC “U0235” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U0235” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U0235” detected as the current malfunction?
YES
>> Refer to
CCS-137, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006224391
1.
CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0235” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-145, "ADAS CONTROL UNIT : DTC Logic"
NO
>> GO TO 2.
2.
CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “LASER”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
U0235
(144)
ICC SENSOR CAN
CIR1
If ADAS control unit detects an error signal
that is received from ICC sensor via ITS com-
munication
ICC sensor
CCS-138
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
U0401 ECM CAN 1
U0401 ECM CAN 1
DTC Logic
INFOID:0000000006224392
DTC DETECTION LOGIC
NOTE:
If DTC “U0401” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “U0401” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U0401” detected as the current malfunction?
YES
>> Refer to
CCS-138, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006224393
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0401” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-145, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ECM SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible causes
U0401
(120)
ECM CAN CIR1
If ADAS control unit detects an error signal
that is received from ECM via CAN communi-
cation
ECM
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