Infiniti QX56 (Z62). Manual — part 279
DAS
C1A21 UNIT HIGH TEMP
DAS-153
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A21 UNIT HIGH TEMP
DTC Logic
INFOID:0000000006228090
DTC DETECTION LOGIC
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn the ignition switch OFF.
2.
Wait for 10 minutes or more to cool the ICC sensor.
3.
Start the engine.
4.
Turn the DCA system ON.
5.
Perform “All DTC Reading” with CONSULT-III.
6.
Check if the “C1A21” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A21” detected as the current malfunction?
YES
>> Refer to
DAS-153, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228091
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A21” is detected in “Self Diagnostic Result” of “LASER”.
Is “C1A21” detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
CCS-111, "ICC SENSOR : DTC Logic"
.
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
C1A21
(21)
ICC SENSOR HIGH
TEMP
ICC sensor judges high temperature abnormality
Temperature around the ICC sensor
becomes high
DAS-154
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A24 NP RANGE
C1A24 NP RANGE
DTC Logic
INFOID:0000000006228092
DTC DETECTION LOGIC
NOTE:
If DTC “C1A24” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC REPRODUCE (1)
1.
Start the engine.
2.
Turn the DCA system ON.
3.
Wait for approximately 5 minutes or more after shifting the selector lever to “P” position.
4.
Perform “All DTC Reading” with CONSULT-III.
5.
Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A24” detected as the current malfunction?
YES
>> Refer to
DAS-154, "Diagnosis Procedure"
NO
>> GO TO 2.
2.
CHECK DTC REPRODUCE (2)
1.
Wait for approximately 5 minutes or more after shifting the selector lever to “N” position.
2.
Perform “All DTC Reading”.
3.
Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A24” detected as the current malfunction?
YES
>> Refer to
DAS-154, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228093
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A24” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-182, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK NP POSITION SWITCH SIGNAL
Check that “NP RANGE SW” operates normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
3.
CHECK TCM DATA MONITOR
Check that “SLCT LVR POSI” operates normally in “DATA MONITOR” of “TRANSMISSION”.
Is the inspection result normal?
YES
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
NO
>> GO TO 4.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A24
(24)
NP RANGE
A mismatch between a shift position signal
transmitted from TCM via CAN communica-
tion and an current gear position signal contin-
ues for 60 seconds or more
• TCM
• Transmission range switch
DAS
C1A24 NP RANGE
DAS-155
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
4.
PERFORM TCM SELF-DIAGNOSIS
1.
Perform “All DTC Reading”.
2.
Check if any DTC is detected in “Self Diagnostic Result” of “TRANSMISSION”.
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-156
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A26 ECD MODE MALFUNCTION
C1A26 ECD MODE MALFUNCTION
DTC Logic
INFOID:0000000006228094
DTC DETECTION LOGIC
NOTE:
If DTC “C1A26” is detected along with DTC “U1000”, “U0415” or “U0121” first diagnose the DTC “U1000”,
“U0415” or “U0121”.
• DTC “U1000”: Refer to
DAS-182, "ADAS CONTROL UNIT : DTC Logic"
• DTC “U0415”: Refer to
.
• DTC “U0121”: Refer to
.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Wait for approximately 1 minute after turning the DCA system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A26” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A26” detected as the current malfunction?
YES
>> Refer to
DAS-156, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228095
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000”, “U0415” or “U0121” is detected other than “C1A26” 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
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
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 ADAS control unit. Refer to
DAS-63, "Removal and Installation"
DTC
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
C1A26
(26)
ECD MODE MALF
If an abnormal condition occurs with ECD system
ABS actuator and electric unit (control
unit)
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