Infiniti FX35, FX50 (S51). Manual — part 349

CCS-216

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1A03 VEHICLE SPEED SENSOR

Is the inspection result normal?

YES

>> Replace the ICC sensor integrated unit. Refer to

CCS-380, "Exploded View"

.

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

TM-150, "DTC Index"

(VQ35HR) or

TM-332, "DTC Index"

(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

BRC-119, "DTC Index"

.

NO

>> Replace the ICC sensor integrated unit. Refer to

CCS-380, "Exploded View"

.

Special Repair Requirement

INFOID:0000000005501796

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

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

.

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to

CCS-191, "ACTION TEST : Description"

for action test.)

2.

Check that the DCA system is normal.

>> WORK END

CCS

C1A04 ABS/TCS/VDC SYSTEM

CCS-217

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1A04 ABS/TCS/VDC SYSTEM

Description

INFOID:0000000005501797

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:0000000005501798

DTC DETECTION LOGIC

NOTE:
If DTC “C1A04” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC Logic"

.

Diagnosis Procedure

INFOID:0000000005501799

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.

Refer to

CCS-313, "ICC SENSOR INTEGRATED 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

BRC-119, "DTC Index"

.

NO

>> Replace the ICC sensor integrated unit. Refer to

CCS-380, "Exploded View"

.

Special Repair Requirement

INFOID:0000000005501800

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

CCS-13, "LASER BEAM AIMING

ADJUSTMENT : Description"

.

>> GO TO 2.

2.

CHECK DCA SYSTEM

1.

Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to

CCS-191, "ACTION TEST : Description"

for action test.)

2.

Check that the DCA system is normal.

DTC

(On board dis-

play)

Trouble diagnosis

name

DTC detecting condition

Possible causes

C1A04

(4)

ABS/TCS/VDC CIRC

If the malfunction occurs in the VDC/TCS/ABS
system

ABS actuator and electric unit (control
unit)

CCS-218

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

C1A04 ABS/TCS/VDC SYSTEM

>> WORK END

CCS

C1A05 BRAKE SW/STOP LAMP SW

CCS-219

< DTC/CIRCUIT DIAGNOSIS >

[DCA]

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C1A05 BRAKE SW/STOP LAMP SW

Description

INFOID:0000000005501801

• ICC brake switch is turned OFF and stop lamp switch is turned ON, when depressing the brake pedal.
• ICC brake switch signal and stop lamp switch signal are input to ECM. These signals are transmitted from

ECM to ICC sensor integrated unit via CAN communication.

DTC Logic

INFOID:0000000005501802

DTC DETECTION LOGIC

NOTE:
If DTC “C1A05” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to

CCS-313, "ICC

SENSOR INTEGRATED UNIT : DTC Logic"

.

Diagnosis Procedure

INFOID:0000000005501803

1.

CHECK SELF-DIAGNOSIS RESULTS

1.

Perform “All DTC Reading” with CONSULT-III.

2.

Check if the “U1000” is detected other than “C1A05” in “Self Diagnostic Result” of “ICC”.

Is “U1000” detected?

YES

>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.

Refer to

CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"

.

NO

>> GO TO 2.

2.

CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH

Check that “STOP LAMP SW” and “BRAKE SW” operate normally in “DATA MONITOR” of “ICC”.
Is the inspection result normal?

YES

>> GO TO 12.

NO-1

>> When “BRAKE SW” operation is malfunctioning: GO TO 3.

NO-2

>> When “STOP LAMP SW” operation is malfunctioning: GO TO 8.

3.

CHECK ICC BRAKE SWITCH INSTALLATION

1.

Turn ignition switch OFF.

2.

Check ICC brake switch for correct installation. Refer to

BR-7, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Adjust ICC brake switch installation. Refer to

BR-7, "Inspection and Adjustment"

.

4.

ICC BRAKE SWITCH INSPECTION

1.

Disconnect ICC brake switch connector.

2.

Check ICC brake switch. Refer to

CCS-222, "Component Inspection (ICC Brake Switch)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace ICC brake switch.

DTC

(On board dis-

play)

Trouble diagnosis

name

DTC detecting condition

Possible causes

C1A05

(5)

BRAKE SE/STOP L
SW

If ICC sensor integrated unit receives the ICC
brake switch signal ON status during the stop
lamp switch signal ON status

• Stop lamp switch circuit
• ICC brake switch circuit
• Stop lamp switch
• ICC brake switch
• Incorrect stop lamp switch installa-

tion

• Incorrect ICC brake switch installa-

tion

• ECM