Infiniti FX35, FX50 (S51). Manual — part 309
CCS-56
< DTC/CIRCUIT DIAGNOSIS >
[ICC (FULL SPEED RANGE)]
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
2.
Check that the ICC system is normal.
>> WORK END
CCS
C1A03 VEHICLE SPEED SENSOR
CCS-57
< DTC/CIRCUIT DIAGNOSIS >
[ICC (FULL SPEED RANGE)]
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C1A03 VEHICLE SPEED SENSOR
Description
INFOID:0000000005501581
The ICC sensor integrated unit receives the vehicle speed signal (wheel speed) from ABS actuator and elec-
tric unit (control unit) and the A/T vehicle speed sensor signal (output shaft revolution signal) from TCM via
CAN communication.
DTC Logic
INFOID:0000000005501582
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
• Refer to
• Refer to
for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Drive the vehicle at 30 km/h (19 MPH) or more.
CAUTION:
Always drive safely.
4.
Stop the vehicle.
5.
Perform “All DTC Reading” with CONSULT-III.
6.
Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “ICC”.
Is “C1A03” detected as the current malfunction?
YES
>> Refer to
NO
>> Refer to
GI-36, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000005501583
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A04” or “U1000” is detected other than “C1A03” in “Self Diagnostic Result” of “ICC”.
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 DATA MONITOR
1.
Start the engine.
2.
Drive the vehicle.
3.
Check that the value of “VHCL SPD AT” is almost the same as the value of “VHCL SPEED SE” in “DATA
MONITOR” of “ICC”.
CAUTION:
Be careful of the vehicle speed.
DTC
(On board
display)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A03
(3)
VHCL SPEED SE
CIRC
If the vehicle speed signal (wheel speed) from
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 via CAN commu-
nication, are inconsistent
• Wheel speed sensor
• ABS actuator and electric unit (control
unit)
• Vehicle speed sensor A/T (output speed
sensor)
• TCM
• ICC sensor integrated unit
CCS-58
< DTC/CIRCUIT DIAGNOSIS >
[ICC (FULL SPEED RANGE)]
C1A03 VEHICLE SPEED SENSOR
Is the inspection result normal?
YES
>> Replace the ICC sensor integrated unit. Refer to
NO
>> GO TO 3.
3.
CHECK TCM SELF-DIAGNOSIS RESULTS
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
(VQ35HR) or
(VK50VE).
NO
>> GO TO 4.
4.
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 ICC sensor integrated unit. Refer to
Special Repair Requirement
INFOID:0000000005501584
DESCRIPTION
Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit
SPECIAL REPAIR REQUIREMENT
1.
LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT
Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to
>> GO TO 2.
2.
CHECK ICC SYSTEM
1.
Erase the “Self Diagnostic Result”, and then perform “All DTC Reading” again after performing the action
test. (Refer to
CCS-18, "ACTION TEST : Description"
2.
Check that the ICC system is normal.
>> WORK END
CCS
C1A04 ABS/TCS/VDC SYSTEM
CCS-59
< DTC/CIRCUIT DIAGNOSIS >
[ICC (FULL SPEED RANGE)]
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C1A04 ABS/TCS/VDC SYSTEM
Description
INFOID:0000000005501585
ABS actuator and electric unit (control unit) transmits the vehicle speed signal (wheel speed), and VDC/TCS/
ABS system operation condition to ICC sensor integrated unit via CAN communication.
DTC Logic
INFOID:0000000005501586
DTC DETECTION LOGIC
NOTE:
If DTC “C1A04” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
.
Diagnosis Procedure
INFOID:0000000005501587
1.
CHECK SELF-DIAGNOSIS RESULTS
1.
Perform “All DTC Reading” with CONSULT-III.
2.
Check if the “U1000” is detected other than “C1A04” in “Self Diagnostic Result” of “ICC”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
.
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 ICC sensor integrated unit. Refer to
Special Repair Requirement
INFOID:0000000005501588
DESCRIPTION
Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit
SPECIAL REPAIR REQUIREMENT
1.
LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT
Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to
>> GO TO 2.
2.
CHECK ICC SYSTEM
1.
Erase the “Self Diagnostic Result”, and then perform “All DTC Reading” again after performing the action
test. (Refer to
CCS-18, "ACTION TEST : Description"
2.
Check that the ICC system is normal.
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A04
(4)
ABS/TCS/VDC CIRC
If a malfunction occurs in the VDC/TCS/ABS
system
ABS actuator and electric unit (control
unit)
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