Infiniti G37 Coupe. Manual - part 302

CCS

INTELLIGENT CRUISE CONTROL SYSTEM

CCS-21

< FUNCTION DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

Component Description

INFOID:0000000001606868

×

: Applicable

A.

In combination meter

B.

Back of combination meter

C.

Steering wheel RH

D.

Instrument passenger lower cover 
removed

E.

Front bumper LH

F.

Engine room LH

G.

Brake pedal

H.

Clutch pedal

: Vehicle front

Component

Vehicle-to-

vehicle 

distance 

control mode

Conventional 

(Fixed speed) 

cruise 

control mode

Brake assist 

(With preview 

function)

Description

ICC sensor integrated unit

×

×

×

Refer to 

CCS-27, "Description"

.

ECM

×

×

×

Refer to 

CCS-55, "Description"

.

ABS actuator and electric 
unit (control unit)

×

×

×

Refer to 

CCS-32, "Description"

.

BCM

×

Transmits front wiper request signal to ICC sensor inte-
grated unit through CAN communication.

TCM

×

×

Refer to 

CCS-75, "Description"

.

Unified meter and A/C amp.

×

×

×

Receives the ICC system display signal, ICC warning 
lamp signal and ICC warning buzzer signal from the ICC 
sensor integrated unit with CAN communication. Trans-
mits the data to the combination meter with communica-
tion line.

Combination meter

×

×

×

Using the signals received from the unified meter A/C 
amp. with communication line, performs the following 
operations.
• Displays the ICC system operation status according 

to the ICC system display signal.

• Illuminates the ICC warning lamp according to the 

ICC warning lamp signal.

• Operates the buzzer according to the ICC warning 

buzzer signal.

ICC brake switch

×

×

×

Refer to 

CCS-34, "Description"

.

Stop lamp switch

×

×

×

ICC brake hold relay

×

×

×

Refer to 

CCS-48, "Description"

.

ICC clutch switch

×

×

Transmits operating signal to ECM when depressing 
clutch pedal. ICC sensor integrated unit cancels cruise 
system at driver's clutch operation.

CCS-22

< FUNCTION DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

DIAGNOSIS SYSTEM (ICC SENSOR INTEGRATED UNIT)

DIAGNOSIS SYSTEM (ICC SENSOR INTEGRATED UNIT)

Diagnosis Description

INFOID:0000000001606869

The ICC system includes the on board self-diagnosis function that allows the technician to check for any trou-
ble codes on the ICC system display by operating the ICC steering switch. 

ON BAOAD SELF-DIAGNOSIS SYSTEM DIAGRAM

ON BOARD SELF-DIAGNOSIS OPERETION PROCEDURE

1.

Turn ignition switch OFF.

2.

Start engine.

3.

From 5 seconds through 15 seconds after start engine, press
RESUME/ACCELERATE switch 5 times, and SET/COAST
switch 5 times.
NOTE:
• Never turn the MAIN switch ON.
• When operation above is not completed from 5 seconds

through 15 seconds, start again from above go to 1.

4.

When the on board self-diagnosis starts up, the ICC system display shows DTC No. (1) at the set vehicle
speed indicator. Refer to 

CCS-92, "DTC Index"

.

NOTE:
• DTC will disappear after 5 minutes.
• When more than one malfunction is detected, a maximum of 3 code numbers can be stored; the latest

malfunction will be displayed first.

WHEN ON BOARD SELF-DIAGNOSIS WILL NOT START UP

JSOIA0009GB

PKIB8371E

JSOIA0008GB

CCS

DIAGNOSIS SYSTEM (ICC SENSOR INTEGRATED UNIT)

CCS-23

< FUNCTION DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

If the on board self-diagnosis does not start up, check the following items.

ERASING ON BOARD SELF-DIAGNOSIS

1.

Stop the vehicle and turn ignition switch OFF.

2.

Start engine and start on board self-diagnosis.

3.

During on board self-diagnosis, 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.

CONSULT-III Function (ICC)

INFOID:0000000001606870

DESCRIPTION

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.

WORK SUPPORT

Assumed abnormal point

Inspection item

Combination meter system.

Combination meter malfunction.

Check that the self-diagnosis function of the combination 
meter starts up. Refer to 

MWI-35, "Diagnosis Description"

.

Unified meter and A/C amp. malfunction.

Inspect the unified meter and A/C amp. power and ground 
circuits. Refer to 

MWI-50, "UNIFIED METER AND A/C 

AMP. : Diagnosis Procedure"

.

Communication error of the combination 
meter and the unified meter and A/C amp. 

Start up the self-diagnosis of the unified meter and A/C 
amp. and check the self-diagnosis results. Refer to 

MWI-

100, "DTC Index"

.

ICC steering switch malfunction.

Perform the inspection for DTC “OPERATION SW CIR 
[C1A06]” (DTC 6). Refer to 

CCS-44, "Diagnosis Proce-

dure"

.

Harness malfunction between ICC steering switch and ECM.

ECM malfunction.

ICC sensor integrated unit malfunction.

• Inspect the ICC sensor integrated unit power and ground 

circuits. Refer to 

CCS-81, "Diagnosis Procedure"

• Perform the self-diagnosis for the ICC sensor integrated 

unit with CONSULT-III, and check the diagnosis results. 
Refer to 

CCS-92, "DTC Index"

.

PKIB8373E

Test mode

Function

Work Support

• Monitors aiming direction to facilitate laser beam aiming operation.
• Indicates causes of automatic cancellation of the ICC system.

Self Diagnostic Result

Displays malfunctioning system memorized in ICC sensor integrated unit.

Data Monitor

Displays real-time input/output data of ICC sensor integrated unit.

Active Test

Enables operation check of electrical loads by sending driving signal to them.

ECU Identification

Displays part number of ICC sensor integrated unit.

Work support item

Function

CAUSE OF AUTO-CANCEL

Indicates causes of automatic cancellation of the ICC system.

LASER BEAM ADJUST

Outputs laser beam, calculates dislocation of the beam, and indicates adjustment direction.
For the adjustment procedure, refer to 

CCS-7, "LASER BEAM AIMING ADJUSTMENT : Spe-

cial Repair Requirement (Preparation)"

. 

CCS-24

< FUNCTION DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

DIAGNOSIS SYSTEM (ICC SENSOR INTEGRATED UNIT)

Cause of Auto-Cancel Display Item List

×

: Applicable

• Last five cancel (system cancel) causes are displayed.
• “CAUSE OF AUTO-CANCEL” displays times of ignition switch ON/OFF up to 254 maximum. 254 is kept

though the number exceeds 254. The number returns to 0 when detecting the same cancellation causes. 

SELF DIAGNOSTIC RESULT

For details, refer to 

CCS-92, "DTC Index"

.

NOTE:
“DTC RESULTS” and “TIME” are indicated on “Self Diagnostic Result”. “TIME” is used as a reference data of
diagnosis. It shows when malfunction is detected.
“TIME” shows the following.
• 0: malfunction is detected at present (from malfunction detection to ignition switch OFF).

CAN communication ([U1000], [U1010])

• 1 ~ 39: Displays when it is normal at present and finds malfunction in the past. It increases like

0

→

1

→

2...38

→

39 after returning to the normal condition whenever IGN OFF

→

ON. If it is over 39, it is fixed to

39 until the self-diagnostic results are erased. It returns to 0 when malfunction is detected again in the pro-
cess.
Other than CAN communication (other than [U1000], [U1010]) 

• 1 ~ 49: Displays when it is normal at present and finds malfunction in the past. It increases like

0

→

1

→

2...48

→

49 after returning to the normal condition whenever IGN OFF

→

ON. If it is over 49, it is fixed to

49 until the self-diagnostic results are erased. It returns to 0 when malfunction is detected again in the pro-
cess.

Cause of cancellation

Vehicle-to-vehi-
cle distance 
control mode

Conventional 
(fixed speed) 
cruise control 
mode

Description

OPERATING WIPER

×

Windshield wipers were operated at HI or LO speed operation. 

OPERATING ABS

×

ABS function was operated.

OPERATING TCS

×

×

TCS function was operated.

OPERATING VDC

×

×

VDC function was operated.

OPE SW VOLT CIRC

×

×

Outside the standard control switch input voltage was detected.

ECM CIRCUIT

×

×

ECM did not permit ICC operation.

LASER SUN BEAM

×

Intense light such as sunlight entered ICC sensor integrated unit 
light sensing part.

LASER TEMP

×

Temperature around ICC sensor integrated unit became low.

OP SW DOUBLE TOUCH

×

×

ICC steering switches were pressed at the same time.

WHL SPD ELEC NOISE

×

×

Wheel speed sensor signal caught electromagnetic noise.

VDC/TCS OFF SW

×

VDC OFF switch was pressed.

WHEEL SPD UNMATCH

×

×

Wheel speed became different from A/T vehicle speed.

TIRE SLIP

×

×

Wheel slipped.

IGN LOW VOLT

×

×

Power supply voltage became low.

SNOW MODE SW

×

Snow mode switch was pressed.

VHCL SPD DOWN

×

×

Vehicle speed becomes 32 km/h (20 MPH) and under.

VHCL SPD UNMATCH

×

×

Vehicle speed becomes unusual.

CAN COMM EEROR

×

×

ICC sensor integrated unit received an abnormal signal with CAN 
communication

ABS/TCS/VDC CIRC

×

×

An abnormal condition occurs in ABC/TCS/VDC system

ECD CIRCUIT

×

An abnormal condition occurs in ECD system

ENG SPEED DOWN

×

×

Engine speed became extremely low while controlling ICC system

ASCD VHCL SPD DTAC

×

Vehicle speed is detached from set vehicle speed

ASCD DOUBLE COMD

×

Cancel switch and operation switch are detected simultaneously

NO RECORD

×

×

—