Infiniti FX35 / FX45. Manual - part 15

ACS-54

< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

2.

Check if “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item other then “DTC 103 LASER
SENSOR FAIL” is indicated in self-diagnosis item in the display.

Is any indicated?

YES

>> Go to applicable item inspection. Refer to 

ACS-36, "DTC 11 CONTROL UNIT"

, and 

ACS-36,

"DTC 20 CAN COMM CIRCUIT"

.

NO

>> 1.

Replace ICC sensor, and adjust laser beam aiming.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

DTC 104 LASER AIMING INCMP

INFOID:0000000001328845

1.

CHECK DIAGNOSIS 

1.

Adjust laser beam aiming. Erase DTC and perform ICC system running test.

2.

After that, perform self-diagnosis of ICC system. 

3.

Check if “DTC 104 LASER AIMING INCMP” is indicated.

Is it indicated?

YES

>> 1.

Replace ICC sensor, and adjust laser beam aiming.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NO

>> INSPECTION END

DTC 107 LASER COMM FAIL

INFOID:0000000001328846

1.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system.

2.

Check if “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item other than “DTC 107 LASER
COMM FAIL” is indicated in the self-diagnosis item in the display.

Is any indicated?

YES

>> Go to applicable item inspection. Refer to 

ACS-36, "DTC 11 CONTROL UNIT"

, and 

ACS-36,

"DTC 20 CAN COMM CIRCUIT"

.

NO

>> 1.

Replace ICC sensor, and adjust laser beam aiming.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

DTC 109 LASER HIGH TEMP

INFOID:0000000001328847

1.

CHECK SYMPTOM 

Check if cooling system malfunctions. 

Does it malfunction?

YES

>> 1.

Repair cooling system.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NO

>> 1.

Replace ICC sensor, and adjust laser beam aiming.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

TROUBLE DIAGNOSIS FOR SYMPTOMS

ACS-55

< SERVICE INFORMATION >

[ICC]

C

D

E

F

G

H

I

J

L

M

A

B

ACS

N

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TROUBLE DIAGNOSIS FOR SYMPTOMS

Symptom Chart

INFOID:0000000001328848

Symptom 1 MAIN Switch Does Not Turn ON

*1

, MAIN Switch Does Not Turn OFF

*2

INFOID:0000000001328849

NOTE:
• *1: The ICC system display in the combination meter does not illuminate. 
• *2: The ICC system display in the combination meter remains powered.

1.

CHECK MAIN SWITCH

With “Data Monitor” of “ICC”, check that MAIN switch operates normally.
OK or NG

OK

>> GO TO 2.

NG

>> GO TO 3.

2.

CHECK CONNECTOR ICC UNIT

1.

Turn ignition switch OFF.

2.

Disconnect ICC unit connector.

3.

Check connector housing for disconnected, loose, bent, and collapsed terminals.

Symptoms

Reference page

Operation

MAIN switch does not switch ON.

Symptom 1 

ACS-55

MAIN switch does not switch OFF.

Symptom 1 

ACS-55

Cruise does not function for setting (powering functions).

Symptom 2

ACS-56

CANCEL switch does not function.

Symptom 3 

ACS-56

Resume does not function.

Symptom 3 

ACS-56

Set speed does not increase.

Symptom 3 

ACS-56

Set distance to the vehicle ahead cannot be changed.

Symptom 3 

ACS-56

ICC is not cancelled when the A/T selector lever is in other 
than “D” and “M” position.

Symptom 4 

ACS-57

Display/Chime

ICC system display does not appear.

Check combination meter. Refer to 

DI-15, "Trou-

ble Diagnosis"

.

Chime does not function.

Symptom 5 

ACS-57

Control

Driving force is hunting.

Symptom 6 

ACS-58

Function to detect 
the vehicle ahead

System frequently cannot detect the vehicle ahead.

Symptom 7 

ACS-58

Distance to detect the vehicle ahead is short.

Symptom 7 

ACS-58

System misidentifies a vehicle even though there is no vehi-
cle ahead.

• Refer  to 

ACS-14

.

• Refer  to 

ACS-11, "ICC System Running Test"

.

System misidentifies a vehicle in the next lane.

• Refer  to 

ACS-14

.

• Refer  to 

ACS-11, "ICC System Running Test"

.

System does not detect a vehicle at all.

Symptom 8 

ACS-59

ACS-56

< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS FOR SYMPTOMS

OK or NG

OK

>> GO TO 3.

NG

>>

Poor connector connection

1.

Repair ICC unit connector.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

3.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system. 

2.

Check if “DTC 20 CAN COMM CIRCUIT” is indicated.

Is it indicated?

YES

>> Refer to 

ACS-36, "DTC 20 CAN COMM CIRCUIT"

.

NO

>> Refer to 

ACS-40, "DTC 46 OPERATION SW CIRC"

.

Symptom 2 ICC System Cannot Be Set (MAIN Switch Turns ON/OFF)

INFOID:0000000001328850

The ICC cannot be set in the following cases.

• When the vehicle speed is not in range of approx. 40 km/h (25 MPH) to 144 km/h (90 MPH).
• When the A/T selector lever is in gears other than “D” and “M” position.
• While the brake is in operation.

1.

CHECK CAUSE OF AUTOMATIC CANCELLATION

With “CAUSE OF AUTO-CANCEL” in “Work Support”, check if any cause of cancellation exists.

OK or NG

OK

>>

Cancel with appropriate cause, and go to specified diagnosis.

• “OPE SW VOLT CIRC”: Refer to 

ACS-40, "DTC 46 OPERATION SW CIRC"

.

• “VHCL SPD UNMATCH”: Refer to 

ACS-37, "DTC 41 VHCL SPEED SE CIRC"

.

• “IGN LOW VOLT”: Refer to 

ACS-37, "DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUPPLY

CIR 2"

.          

NG

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

Perform self-diagnosis of ICC system to check for malfunctioning items.

OK or NG

OK

>> GO TO 3.

NG

>> 1.

Repair or replace applicable item.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

3.

CHECK SWITCHES AND VEHICLE SPEED SIGNAL

With “Data Monitor” of “ICC”, check that switches and vehicle speed signal operate normally.
• VHCL SPEED SE 
• D RANGE SW
• BRAKE SW                  
• SET/COAST SW
OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and Perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG-1

>> “VHCL SPEED SE” NG: Refer to 

ACS-37, "DTC 41 VHCL SPEED SE CIRC"

.

NG-2

>> “D RANGE SW” NG: Refer to 

ACS-57, "Symptom 4 ICC System Is Not Cancelled When the A/T

Selector Lever Is in Other Than "D" and "M" Position"

.

NG-3

>> “BRAKE SW” NG: Refer to 

ACS-38, "DTC 45 BRAKE SW/STOP L SW"

.

NG-4

>> “SET/COAST SW” NG: Refer to 

ACS-40, "DTC 46 OPERATION SW CIRC"

.

Symptom 3 ICC System Cannot Be Operated by CANCEL Switch, RESUME/ACCEL-
ERATE Switch or DISTANCE Switch

INFOID:0000000001328851

RESUME does not function in the following cases.

TROUBLE DIAGNOSIS FOR SYMPTOMS

ACS-57

< SERVICE INFORMATION >

[ICC]

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D

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• When MAIN switch is turned off once.
• When the vehicle speed is less than 40 km/h (25 MPH).

1.

CHECK SWITCHES

With “Data Monitor” of “ICC”, check that switches operate normally.
• “RESUME/ACC SW”
• “CANCEL SW”
• “DISTANCE ADJ”

OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system.

2.

Check if “DTC 20 CAN COMM CIRCUIT” is indicated.

Is it indicated?

YES

>> Refer to 

ACS-36, "DTC 20 CAN COMM CIRCUIT"

.

NO

>> Refer to 

ACS-40, "DTC 46 OPERATION SW CIRC"

.

Symptom 4 ICC System Is Not Cancelled When the A/T Selector Lever Is in Other 
Than "D" and "M" Position

INFOID:0000000001328852

1.

CHECK D RANGE SWITCH

With “Data Monitor” of “ICC”, check that “D RANGE SW” operates normally.

OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG

>> GO TO 2.

2.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system.

2.

Check if “DTC 20 CAN COMM CIRCUIT” is indicated.

Is it indicated?

YES

>> Refer to 

ACS-36, "DTC 20 CAN COMM CIRCUIT"

.

NO

>> GO TO 3.

3.

CHECK D RANGE SWITCH

With TCM “Data Monitor” of “ICC”, check that “D” position switch operates normally.
OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG

>> 1.

Repair or replace applicable item.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

Symptom 5 Chime Does Not Sound

INFOID:0000000001328853

The chime may not sound occasionally in the following cases even if the distance from the vehicle ahead is
short:
• When the speed difference from that of the vehicle ahead is small (both vehicles driving at similar speed).
• When the vehicle ahead drives at faster speed (the actual distance is increasing).
• When depressing the accelerator.
• Chime does not sound when the vehicle is not driving.