Infiniti QX56 (Z62). Manual — part 360
DAS
C1A39 STEERING ANGLE SENSOR
DAS-477
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A39 STEERING ANGLE SENSOR
DTC Logic
INFOID:0000000006228229
DTC DETECTION LOGIC
NOTE:
If DTC “C1A39” 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 BSW system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A39” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is “C1A39” detected as the current malfunction?
YES
>> Refer to
DAS-477, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228230
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A39” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-486, "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"
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A39
(39)
STRG SEN CIR
If the steering angle sensor is malfunction
Steering angle sensor
DAS-478
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C1B50 SIDE RADAR MALFUNCTION
C1B50 SIDE RADAR MALFUNCTION
DTC LOGIC
INFOID:0000000006223893
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT-III.
3.
Check if the “C1B50” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT/LEFT”.
Is the “C1B50” detected as the current malfunction?
YES
>> Refer to
DAS-478, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006223894
1.
CHECK SELF-DIAGNOSIS RESULT
Check if any DTC other than “C1B50” is detected in “Self Diagnostic Result” of “SIDE RADAR LEFT/RIGHT”
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunction part. Refer to
(SIDE RADAR RIGHT) or
NO
>> Replace the side radar. Refer to
DAS-523, "Removal and Installation"
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
C1B50
SIDE RDR MALFUNC-
TION
Side radar malfunction
Side radar
DAS
C1B51 BSW/BSI INDICATOR SHORT CIRCUIT
DAS-479
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1B51 BSW/BSI INDICATOR SHORT CIRCUIT
DTC Logic
INFOID:0000000006223895
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT-III.
3.
Check if the “C1B51” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT/LEFT”.
Is the “C1B51” detected as the current malfunction?
YES
>> Refer to
DAS-479, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006223896
1.
CHECK BSW INDICATOR CIRCUIT FOR SHORT
1.
Turn ignition switch OFF.
2.
Disconnect side radar harness connector and BSW indicator harness connector.
3.
Check continuity between side radar harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the harnesses or connectors.
2.
REPLACE THE SIDE RADAR
1.
Replace the side radar.
2.
Perform “All DTC Reading” with CONSULT-III.
3.
Check if the “C1B51” is detected in “Self Diagnostic Result” of “SIDE RADAR RIGHT/LEFT”
Is the DTC “C1B51” detected?
YES
>> Replace the side radar. Refer to
DAS-523, "Removal and Installation"
NO
>> INSPECTION END
DTC
Trouble diagnosis name
DTC detecting condition
Possible cause
C1B51
BSW/BSI IND SHORT CIR
Short circuit in BSW indicator circuit is detected. (Over cur-
rent is detected)
• BSW indicator circuit
• BSW indicator
• Side radar
Side radar
Ground
Continuity
Connector
Terminal
B74 (LH)
6
Not existed
B243 (RH)
DAS-480
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C1B52 BSW/BSI INDICATOR OPEN CIRCUIT
C1B52 BSW/BSI INDICATOR OPEN CIRCUIT
DTC Logic
INFOID:0000000006223897
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the BSW system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1B52” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT/LEFT”.
Is the “C1B52” detected as the current malfunction?
YES
>> Refer to
DAS-480, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006223898
1.
CHECK BSW INDICATOR CIRCUIT FOR OPEN 1
1.
Turn ignition switch OFF.
2.
Disconnect side radar harness connector and BSW indicator harness connector.
3.
Check continuity between side radar harness connector and BSW indicator harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the harnesses or connectors.
2.
CHECK BSW INDICATOR CIRCUIT FOR OPEN 2
Check continuity between BSW indicator harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK SIDE RADAR VOLTAGE OUTPUT
1.
Connect side radar harness connector.
2.
Check voltage between BSW indicator harness connector and ground.
DTC
Trouble diagnosis name
DTC detecting condition
Possible cause
C1B52
BSW/BSI IND OPEN CIR
Open circuit in BSW indicator circuit is detected.
• BSW indicator circuit
• BSW indicator
• Side radar
Side radar
BSW indicator
Continuity
Connector
Terminal
Connector
Terminal
B74 (LH)
6
D73 (LH)
1
Existed
B243 (RH)
D74 (RH)
BSW indicator
Ground
Continuity
Connector
Terminal
D73 (LH)
4
Existed
D74 (RH)
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