Infiniti G35 (V35) Sedan. Manual — part 280
CCS
C1A03 VEHICLE SPEED SENSOR
CCS-31
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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C1A03 VEHICLE SPEED SENSOR
Description
INFOID:0000000000965401
The ICC sensor integrated unit receives the vehicle speed signal (wheel speed) from the ABS actuator and
electric unit (control unit) and the A/T vehicle speed sensor signal (output shaft revolution signal) from TCM
with CAN communication.
NOTE:
If DTC C1A03 is detected along with DTC U1000 or C1A04, first diagnose the DTC U1000 or C1A04.
• DTC U1000: Refer to
• DTC C1A04: Refer to
DTC Logic
INFOID:0000000000965402
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000000965403
1.
PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT
1.
Perform self-diagnosis of ICC sensor integrated unit.
2.
Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) or “ABS/TCS/VDC CIRC [C1A04]” (DTC 4)
other than “VHCL SPEED SE CIRC [C1A03]” (DTC 3) is detected.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
DIAGNOSIS FOR DETECTED DTC
Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to
.
>> GO TO 6.
3.
CHECK A/T VEHICLE SPEED SENSOR
With CONSULT-III
1.
Start engine.
2.
With “DATA MONITOR” of “ICC”, check if “VHCL SPD AT” operates normally.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
PERFORM SELF-DIAGNOSIS OF TCM
1.
Perform self-diagnosis of TCM.
2.
Repair or replace applicable item. Refer to
.
>> GO TO 6.
5.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
C1A03
(3)
VHCL SPEED SE CIRC
If the vehicle speed signal (wheel speed) from the
ABS actuator and electric unit (control unit) and
the A/T vehicle speed sensor signal (output shaft
revolution signal) from TCM, received by the ICC
sensor integrated unit with CAN communication,
are inconsistent.
• Wheel sensor
• ABS actuator and electric unit (con-
trol unit)
• A/T vehicle speed sensor
• TCM
• ICC sensor integrated unit
CCS-32
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
C1A03 VEHICLE SPEED SENSOR
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 6.
6.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
CCS
C1A04 ABS/TCS/VDC SYSTEM
CCS-33
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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C1A04 ABS/TCS/VDC SYSTEM
Description
INFOID:0000000000965404
• ABS actuator and electric unit (control unit) transmits the vehicle speed signal (wheel speed), the stop lamp
switch signal, and the operation status of the VDC, TCS, and ABS systems to the ICC sensor integrated unit
with CAN communication.
• ABS actuator and electric unit (control unit) receives the deceleration degree command value signal from the
ICC sensor integrated unit with CAN communication and controls the brake fluid pressure with the ABS
actuator and electric unit (control unit).
NOTE:
If DTC C1A04 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to
.
DTC Logic
INFOID:0000000000965405
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000000965406
1.
PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT
1.
Perform self-diagnosis of ICC sensor integrated unit.
2.
Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC100) other than “ABS/TCS/VDC CIRC [C1A04]”
(DTC 4) is detected.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CAN COMMUNICATION INSPECTION
Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to
.
>> GO TO 6.
3.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
1.
Perform self-diagnosis of ABS actuator and electric control unit.
2.
Check if DTC is detected.
Is any DTC detected?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
REPAIR OR REPLACE APPLICABLE ITEM
Repair or replace the applicable item identified by the self-diagnosis result.
>> GO TO 6.
5.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
C1A04
(4)
ABS/TCS/VDC CIRC
If an abnormal condition occurs in the VDC/TCS/
ABS system.
ABS actuator and electric unit (control
unit)
CCS-34
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
C1A04 ABS/TCS/VDC SYSTEM
>> GO TO 6.
6.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
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