Infiniti QX56 (Z62). Manual — part 329
DAS
C1A06 OPERATION SW
DAS-353
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
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C1A06 OPERATION SW
DTC Logic
INFOID:0000000006228192
DTC DETECTION LOGIC
NOTE:
If DTC “C1A06” 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.
Wait for approximately 5 minutes after turning the LDP system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A06” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A06” detected as the current malfunction?
YES
>> Refer to
DAS-353, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228193
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A06” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ICC STEERING SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect the ICC steering switch connector.
3.
Check the ICC steering switch. Refer to
DAS-354, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace the steering wheel.
3.
CHECK HARNESS BETWEEN SPIRAL CABLE AND ECM
1.
Disconnect the ECM connector.
2.
Check for continuity between the spiral cable harness connector and ECM harness connector.
3.
Check for continuity between spiral cable harness connector and ground.
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A06
(6)
OPERATION SW
CIRC
• Any switch of the ICC steering switch is de-
tected as “ON” continuously for 60 seconds
• An ON/OFF state judgment of the ICC differs
between ECM and ADAS control unit, and the
state continues for 2 seconds or more
• ICC steering switch circuit
• ICC steering switch
• ECM
Spiral cable
ECM
Continuity
Connector
Terminal
Connector
Terminal
M33
25
E80
128
Existed
32
130
DAS-354
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C1A06 OPERATION SW
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the harnesses or connectors.
4.
CHECK SPIRAL CABLE
Check for continuity between spiral cable terminals.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace the spiral cable.
5.
PERFORM SELF-DIAGNOSIS OF ECM
1.
Connect the connectors of ICC steering switch and ECM connector.
2.
Turn the ignition switch ON.
3.
Perform “All DTC Reading”.
4.
Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”.
Is any DTC detected?
YES
>> Perform self-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"
Component Inspection
INFOID:0000000006228194
1.
CHECK ICC STEERING SWITCH
Check resistance between ICC steering switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace the steering wheel.
Spiral cable
Ground
Continuity
Connector
Terminal
M33
25
Not existed
32
Spiral cable
Continuity
Terminal
13
25
Existed
16
32
Terminal
Switch operation
Resistance
[
Ω
]
13
16
When pressing MAIN switch
Approx. 0
When pressing dynamic driver assistance
switch
Approx. 267
When pressing CANCEL switch
Approx. 615
When pressing DISTANCE switch
Approx.
1090
When pressing SET/COAST switch
Approx.
1805
When pressing RESUME/ACCELERATE
switch
Approx.
2985
When all switches are not pressed
Approx.
5415
JSOIA0319GB
DAS
C1A14 ECM
DAS-355
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C
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C1A14 ECM
DTC Logic
INFOID:0000000006228195
DTC DETECTION LOGIC
NOTE:
If DTC “C1A14” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
"ADAS CONTROL UNIT : DTC Logic"
.
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Operate the ICC system and drive.
CAUTION:
Always drive safely.
3.
Stop the vehicle.
4.
Perform “All DTC Reading” with CONSULT-III.
5.
Check if the “C1A14” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A14” detected as the current malfunction?
YES
>> Refer to
DAS-355, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228196
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A14” in “Self Diagnostic Result” of “ICC/ADAS”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
PERFORM SELF-DIAGNOSIS OF ECM
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 dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A14
(14)
ECM CIRCUIT
If ECM is malfunctioning
• Accelerator pedal position sensor
• ECM
• ADAS control unit
DAS-356
< DTC/CIRCUIT DIAGNOSIS >
[LDW & LDP]
C1A15 GEAR POSITION
C1A15 GEAR POSITION
Description
INFOID:0000000006228197
ADAS control unit judges the gear position based on the following signals.
• Current gear position signal transmitted from TCM via CAN communication.
• Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
• Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit
(control unit) via CAN communication.
DTC Logic
INFOID:0000000006228198
DTC DETECTION LOGIC
NOTE:
If DTC “C1A15” is detected along with DTC “U1000”, “C1A03”, or “C1A04”, first diagnose the DTC “U1000”,
“C1A03”, or “C1A04”.
• Refer to
DAS-374, "ADAS CONTROL UNIT : DTC Logic"
• Refer to
• Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the LDP system ON.
3.
Drive the vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more.
CAUTION:
Always drive safely.
4.
Stop the vehicle.
5.
Perform “All DTC Reading” with CONSULT-III.
6.
Check if “C1A15” is detected as the current malfunction in the “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A15” detected as the current malfunction?
YES
>> Refer to
DAS-356, "Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006228199
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A03”, “C1A04”, or “U1000” is detected other than “C1A15” 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.
CHECK VEHICLE SPEED SIGNAL
Check that “VHCL SPEED SE” operates normally in “DATA MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A15
(15)
GEAR POSITION
A mismatch between an current gear posi-
tion signal transmitted from TCM via CAN
communication and a gear position calculat-
ed by the ADAS control unit continues for
approximately 11 minutes or more
• Input speed sensor
• Vehicle speed sensor A/T (output speed
sensor)
• TCM
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