Infiniti FX35 / FX45. Instruction - page 10

ACS-34

< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

8.

DTC 55 will be shown.

9.

Turn ignition switch OFF to exit the diagnosis.

10. Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC warning

lamp (Orange) does not illuminate.

Self-Diagnostic Erasing Method

1.

Stop the vehicle and turn the ignition switch OFF.

2.

Turn ignition switch ON and start self-diagnosis.

3.

During self-diagnosis mode, press CANCEL switch 5 times, and DISTANCE switch 5 times in this order.
NOTE:
• Press them within 10 seconds after pressing CANCEL switch at first.
• When operation is not completed within 10 seconds, start again from step 2 above.

4.

DTC 55 will be shown.
NOTE:
DTC of an existing malfunction will not be erased.

5.

Turn ignition switch OFF to exit the diagnosis.

6.

Perform ICC system running test (drive vehicle with ICC system ON), and make sure that ICC system
warning lamp (Orange) does not illuminate.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

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< SERVICE INFORMATION >

[ICC]

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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

Diagnostic Trouble Code (DTC) Chart

INFOID:0000000001328825

×

: Applicable

DTC

No.

CONSULT-III
screen terms

ICC

system

warning

lamp

Fail-safe

Malfunctions detected where...

Refer-

ence
page

Vehicle-

to-

vehicle

distance

control

mode

Conven-

tional
(fixed

speed)

cruise

control

mode

Brake as-

sist (with

preview

function)

11

CONTROL UNIT

×

×

×

×

• ICC unit internal malfunction

ACS-36

20

CAN COMM CIRCUIT

×

×

×

×

• ICC unit detected CAN communi-

cation malfunction.

ACS-36

31

POWER SUPPLY CIR

×

×

×

×

• ICC unit power supply voltage is

excessively low (less than 8 V).

ACS-37

34

POWER SUPPLY CIR2

×

×

×

×

• ICC unit power supply voltage is

excessively high (more than 19 V).

ACS-37

41

VHCL SPEED SE CIRC

×

×

×

×

• Wheel sensor malfunction.
• ABS actuator and electric unit

(control unit) malfunction

• AT vehicle speed sensor malfunc-

tion

• TCM malfunction

ACS-37

43

ABS/TCS/VDC CIRC

×

×

×

×

• VDC/TCS/ABS system malfunc-

tion

ACS-38

45

BRAKE SW/STOP L SW

×

×

×

×

• Brake and stop lamp switch har-

ness is open or shorted.

• Brake and stop lamp switch is ON

or stuck to OFF.

• Brake and stop lamp switch is

stuck to ON.

ACS-38

46

OPERATION SW CIRC

×

×

×

• ICC steering switch harness or spi-

ral cable is open or shorted.

• ICC steering switch malfunction

ACS-40

61

PRESS SEN CIRCUIT

×

×

×

• Brake pressure sensor harness is

open or shorted.

• Brake pressure sensor malfunction
• Brake pressure sensor input circuit

malfunction

ACS-41

62

BOOSTER SOL/V
CIRCUIT

×

×

×

• Solenoid harness is open or short-

ed.

• Solenoid is open.
• Solenoid drive circuit malfunction

ACS-42

63

RELEASE SW CIRCUIT

×

×

×

×

• Release switch harness is open or

shorted.

• Release switch malfunction
• Release switch input circuit mal-

function

ACS-43

65

PRESSURE CONTROL

×

×

×

• Booster malfunction

ACS-45

74

LASER BEAM OFF CNTR

×

×

×

• Laser beam of ICC sensor is off the

aiming point.

ACS-45

90

STOP LAMP RLY FIX

×

×

×

• Normally open terminal of stop

lamp relay is stuck.

ACS-46

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< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

DTC 11 CONTROL UNIT

INFOID:0000000001328826

1.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system.

2.

Check if any item other than “DTC 11 CONTROL UNIT” is indicated on self-diagnosis display.

Is any indicated?

YES

>> 1.

Repair or replace applicable item.

2.

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

NO

>> 1.

Replace ICC unit.

2.

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

DTC 20 CAN COMM CIRCUIT

INFOID:0000000001328827

1.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Turn ignition switch ON and wait for 2 second or more.

2.

Check self-diagnosis of ICC system.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to

LAN-14, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to

GI-35, "CONSULT-III/GST Data Link Connector (DLC) Circuit"

.

92

ECM CIRCUIT

×

×

×

×

• ECM malfunction
• Accelerator pedal position sensor

malfunction

• ICC unit malfunction

ACS-50

96

NP RANGE

×

×

×

• Park/neutral position switch har-

ness is open or shorted.

• Park/neutral position switch mal-

function.

• TCM malfunction

ACS-51

97 AT

CIRCUIT

×

×

×

• TCM malfunction

ACS-52

98

GEAR POSITION

×

×

×

• TCM malfunction
• AT turbine revolution sensor mal-

function

• AT vehicle speed sensor malfunc-

tion

ACS-52

102

RADAR STAIN

×

×

×

• ICC sensor body window has con-

tamination.

ACS-53

103

LASER SENSOR FAIL

×

×

×

• ICC sensor internal malfunction

ACS-53

104

LASER AIMING INCMP

×

×

×

• Laser beam aiming of ICC sensor

is not adjusted.

ACS-54

107

LASER COMM FAIL

×

×

×

• CAN data received by ICC sensor

is strange (from ICC unit, combina-
tion meter or ECM).

ACS-54

109

LASER HIGH TEMP

×

×

×

• Temperature around ICC sensor is

excessively high.

ACS-54

DTC

No.

CONSULT-III
screen terms

ICC

system

warning

lamp

Fail-safe

Malfunctions detected where...

Refer-

ence
page

Vehicle-

to-

vehicle

distance

control

mode

Conven-

tional
(fixed

speed)

cruise

control

mode

Brake as-

sist (with

preview

function)

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

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DTC 31 POWER SUPPLY CIR, DTC 34 POWER SUPPLY CIR 2

INFOID:0000000001328828

1.

CHECK CONNECTOR ICC UNIT

1.

Turn ignition switch OFF.

2.

Disconnect ICC unit connector, and connect it securely again.

3.

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

Is malfunction indicated?

YES

>> GO TO 2.

NO

>>

Poor connector connection

1.

Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.)

2.

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

2.

CHECK POWER SUPPLY CIRCUIT FOR ICC UNIT

1.

Turn ignition switch ON.

2.

Check voltage between ICC unit harness connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> 1.

Repair ICC unit power supply harness.

2.

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

3.

CHECK GROUND CIRCUIT FOR ICC UNIT

1.

Turn ignition switch OFF.

2.

Disconnect ICC unit connector.

3.

Check continuity between ICC unit harness connector and
ground.

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 ICC unit ground harness.

2.

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

DTC 41 VHCL SPEED SE CIRC

INFOID:0000000001328829

1.

PERFORM SELF-DIAGNOSIS OF ICC SYSTEM

1.

Perform self-diagnosis of ICC system.

2.

Check if “DTC 43 ABS/TCS/VDC CIRC” or “DTC 20 CAN COMM CIRCUIT” other than “DTC 41 VHCL
SPEED SE CIRC” is indicated in self-diagnosis item in the display.

Is any indicated?

YES

>> 1.

Repair or replace applicable item.

ICC unit connector

Terminal

Voltage (Approx.)

(+)

(

)

M89

33

Ground

Battery voltage

42

SKIA1173E

ICC unit con-

nector

Terminal

Ground

Continuity

M88

19

Yes

20

M89

46

SKIA6650E

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