Infiniti G35 (V35) Sedan. Manual - part 288

CCS

C1A21 UNIT HIGH TEMP

CCS-63

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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C1A21 UNIT HIGH TEMP

Description

INFOID:0000000000965437

ICC sensor integrated unit integrates a temperature sensor.

DTC Logic

INFOID:0000000000965438

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000965439

1.

CHECK SYMPTOM 

Check if engine cooling system malfunctions. 

Does it malfunction?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

REPAIR ENGINE COOLING SYSTEM

Repair engine cooling system.

>> GO TO 4.

3.

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

Requirement (Preparation)"

.

>> GO TO 4.

4.

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

DTC No.

(On board 

display)

Trouble diagnosis 

name

DTC detecting condition

Possible cause

C1A21

(21)

UNIT HIGH TEMP

If temperature sensor (built in ICC sensor inte-
grated unit) detects a high temperature.

Temperature around ICC sensor integrated 
unit is excessively high

CCS-64

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A24 NP RANGE

C1A24 NP RANGE

Description

INFOID:0000000000965440

Park/neutral position switch signal is transmitted by TCM to ICC sensor integrated unit with CAN communica-
tion (A/T). 
NOTE:
If DTC C1A24 is detected along with DTC U1000 or U0402, first diagnose the DTC U1000 or U0402.
• DTC U1000: Refer to 

CCS-78, "Diagnosis Procedure"

.

• DTC U0402: Refer to 

CCS-74, "Diagnosis Procedure"

.

DTC Logic

INFOID:0000000000965441

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000965442

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) or “TCM CAN CIR 1 [U0402]” (DTC 122) other
than “NP RANGE [C1A24]” (DTC 24) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

DIAGNOSIS FOR DETECTED DTC

Perform diagnosis on the detected and repair or replace the applicable item. Refer to 

CCS-91, "DTC Index"

.

>> GO TO 6.

3.

CHECK DATA MONITOR OF TCM

With CONSULT-III

With “DATA MONITOR” of “A/T”, check if “SLCT LVR POSI” are 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.

Replace or replace applicable item. Refer o 

TM-189, "DTC Index"

.

>> 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

Requirement (Preparation)"

.

>> GO TO 6.

DTC No.

(On board 

display)

Trouble diagnosis name

DTC detecting condition

Possible cause

C1A24

(24)

NP RANGE

If park/neutral position switch signal and current 
gear position signal, transmitted by TCM with 
CAN communication, are inconsistent.

• Park/neutral position switch signal
• Current gear position signal
• TCM

CCS

C1A24 NP RANGE

CCS-65

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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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-66

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A26 ECD MODE MALFUNCTION

C1A26 ECD MODE MALFUNCTION

Description

INFOID:0000000000965443

ECD (ELECTRONICALLY CONTROLLED DECELERATION)
• Receives deceleration degree commandment value signal from ICC sensor integrated unit, and controls

brake fluid pressure with the motor [built in ABS actuator and electric unit (control unit)].

• ECD control-related signals are transmitted by ABS actuator and electric unit (control unit) to ICC sensor

integrated unit with CAN communication. 

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 

CCS-78, "Diagnosis Procedure"

.

• DTC U0415: Refer to 

CCS-76, "Diagnosis Procedure"

.

• DTC U0121: Refer to 

CCS-70, "Diagnosis Procedure"

.

DTC Logic

INFOID:0000000000965444

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000000965445

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 “VDC CAN CIR 1 [U0415]” (DTC 126), “VDC
CAN CIR 2 [U0121]” (DTC 127) other than “ECD MODE MALF [C1A26]” (DTC 26) 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 

CCS-91, "DTC

Index"

.

>> GO TO 6.

3.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

1.

Perform self-diagnosis of ABS actuator and electric unit (control unit).

2.

Check if DTC is detected. Refer to 

BRC-87, "DTC No. Index"

.

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 SESNOR INTEGRATED UNIT

1.

Replace ICC sensor integrated unit.

DTC No.

(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)