Infiniti G37 Coupe. Manual - part 312

CCS

C1A18 LASER AIMING INCMP

CCS-61

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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C1A18 LASER AIMING INCMP

Description

INFOID:0000000001606910

Always perform laser beam aiming adjustment after replacing ICC sensor integrated unit. 

DTC Logic

INFOID:0000000001606911

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606912

1.

ADJUST LASER BEAM AIMING

1.

Adjust laser beam aiming. Refer to 

CCS-6, "LASER BEAM AIMING ADJUSTMENT : Description"

.

2.

Erase DTC.

3.

Activate the vehicle-to-vehicle distance control mode.

4.

Perform self-diagnosis of ICC sensor integrated unit.

5.

Check if DTC “LASER AIMING INCMP [C1A18]” (DTC 18) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

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 3.

3.

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

C1A18

(18)

LASER AIMING INC-
MP

Laser beam aiming of ICC sensor integrated unit 
is not adjusted.

• No laser beam aiming adjustment is per-

formed

• Laser beam aiming adjustment has been 

interrupted

CCS-62

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A21 UNIT HIGH TEMP

C1A21 UNIT HIGH TEMP

Description

INFOID:0000000001606913

ICC sensor integrated unit integrates a temperature sensor.

DTC Logic

INFOID:0000000001606914

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606915

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

C1A24 NP RANGE

CCS-63

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

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C1A24 NP RANGE

Description

INFOID:0000000001606916

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-79, "Diagnosis Procedure"

.

• DTC U0402: Refer to 

CCS-75, "Diagnosis Procedure"

.

DTC Logic

INFOID:0000000001606917

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000001606918

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-92, "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-186, "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-64

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A24 NP RANGE

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