Infiniti FX35, FX50 (S51). Manual - part 403

CCS-432

< ECU DIAGNOSIS INFORMATION >

[FCW]

LANE CAMERA UNIT

• If the vehicle is parked in direct sunlight under high temperature conditions [approximately over 104

°

F

(40

°

C)] and then started, the system may sound a buzzer and cancel automatically. In this case LDW ON

indicator will blink.

• When the interior temperature is reduced, LDW ON indicator is turned ON.

When using LDP

• If the vehicle is parked in direct sunlight under high temperature conditions [approximately over 104

°

F

(40

°

C)] and then started, the system may sound a buzzer and cancel automatically. In this case LDP ON

indicator lamp will blink.

• When the interior temperature is reduced, LDP ON indicator lamp is turned ON.

DTC Inspection Priority Chart

INFOID:0000000005502044

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000005502045

×

: Applicable

Priority

Detected items (DTC)

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

2

• U0122: VDC CAN CIR1(LDP)
• U0416: VDC CAN CIR2(LDP)

3

C1B00: CAMERA UNIT MALF

4

• C1B01: CAM AIMING INCMP
• C1B02: VHCL SPD DATA MALF
• C1B03: ABNRML TEMP DETECT
• C1B07: ABS DIAGNOSIS

DTC

Lane departure 

warning lamp

LDW ON indicator

LDP ON indicator 

lamp

Fail-safe

Reference 

page

C1B00

CAMERA UNIT MALF

ON

—

—

×

CCS-472

C1B01

CAM AIMING INCMP

Blink

—

—

×

CCS-473

C1B02

VHCL SPD DATA MALF

ON

—

—

×

CCS-474

C1B03

ABNRML TEMP DETECT

—

Blink

(When using LDW)

Blink

(When using LDP)

×

CCS-475

C1B07

ABS DIAGNOSIS

ON

—

—

×

CCS-476

U1000

CAN COMM CIRCUIT

ON

—

—

×

CCS-477

U1010

CONTROL UNIT (CAN)

ON

—

—

×

CCS-478

U0122

VDC CAN CIR1 (LDP)

ON

—

—

×

CCS-479

U0416

VDC CAN CIR2 (LDP)

ON

—

—

×

CCS-481

CCS

FORWARD COLLISION WARNING SYSTEM SYMPTOMS

CCS-433

< SYMPTOM DIAGNOSIS >

[FCW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

SYMPTOM DIAGNOSIS

FORWARD COLLISION WARNING SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000005502046

CAUTION:

Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.

Symptom

Possible cause

Inspection item/Reference page

FCW system is not activated.

FCW ON indicator is not 
turned ON 

⇔

 OFF when op-

erating FCW switch.

• Harness between lane cam-

era unit and FCW switch.

• Harness between FCW 

switch and ground.

• Lane camera unit

FCW switch circuit

CCS-434

CCS-434

< SYMPTOM DIAGNOSIS >

[FCW]

FCW SYSTEM IS NOT ACTIVATED

FCW SYSTEM IS NOT ACTIVATED

Description

INFOID:0000000005502047

FCW system does not operate by pressing the FCW switch.
NOTE:
FCW switch is shared with LDW system.

Diagnosis Procedure

INFOID:0000000005502048

1.

PERFORM THE SELF-DIAGNOSIS

1.

Perform “All DTC Reading” with CONSULT-III. 

2.

Check if the DTC is detected in self-diagnosis results of “ICC” or “LANE CAMERA”. Refer to 

CCS-417,

"DTC Index"

 (ICC) or 

CCS-432, "DTC Index"

 (LANE CAMERA).

Is any DTC detected?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FCW SWITCH CIRCUIT

Check FCW switch circuit. Refer to 

CCS-496, "Component Function Check"

.

NOTE:
FCW switch is shared with LDW system.

Is the inspection result normal?

YES

>> Replace the lane camera unit.

NO

>> GO TO 3.

3.

REPAIR OR REPLACE THE SPECIFIC ITEMS

Repair or replace malfunctioning items. 

>> INSPECTION END

CCS

NORMAL OPERATING CONDITION

CCS-435

< SYMPTOM DIAGNOSIS >

[FCW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

NORMAL OPERATING CONDITION

Description

INFOID:0000000005502049

FORWARD COLLISION WARNING (FCW)

CAUTION:

• FCW system is intended to warn the driver before a collision but will not avoid a collision. It is the

drive's   responsibility to stay alert, drive safely and be in control of the vehicle at all times.

• As there is a performance limit, the FCW system may not provide a warning in certain conditions.
• The FCW system will not detect the following objects.
- Pedestrians, animals, or obstacles in the roadway.
- On coming vehicles in the same lane
• FCW system will not detect under the following conditions.
- When the sensor gets dirty, it is impossible to detect the distance from the vehicle ahead.
- When driving into a strong light(i.e. sunlight)
• The sensor generally detects signals returned from the reflectors on a vehicle ahead. Therefore, the

FCW system may not warn properly under the following conditions:

- When the reflectors of the vehicle ahead are positioned high or close to each other (including a

small vehicle such as motorcycles).

- When the sensor gets dirty and it is impossible to detect the distance to the vehicle ahead.
- When the reflectors on the vehicle ahead is missing, damaged or covered.
- When the reflector of the vehicle ahead is covered with dirt, snow and road spray.
- When visibility is low (such as rain, fog, snow, etc.).
- When snow or road spray from traveling vehicles are splashed.
- When dense exhaust or other smoke (black smoke) from vehicles reduces the sensor visibility.
- When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle.
- When abruptly accelerating or decelerating.
- On steep downhill or roads with sharp curves.
- When there is a highly reflective object near the vehicle ahead.

i.e.) very close to other vehicle, signboard, etc.

- When own vehicle are towing a trailer.
• Depending on certain road conditions (curved, beginning of a curve), vehicle conditions (steering

position, vehicle position), or preceding vehicle's conditions (position in lane, etc.), the FCW system
may not function properly. The FCW system may detect highly reflective objects such as reflectors,
signs, white markers, and other stationary objects on the road or near the traveling lane, and provide
unnecessary warning. 

• The FCW system may not function in offset conditions.
• The FCW system may not function when the distance to the vehicle ahead is extremely close.
• The FCW system is designed to automatically check the sensor's functionality. If the sensor is cov-

ered with ice, a transparent or translucent plastic bag, etc., the system may not detect them. In these
instances the FCW system may not be able to warn properly. Be sure to check and clean the sensor
regularly.

• Excessive noise will interfere with the warning chime sound, and the chime may not be heard.
• A sudden appearance of the vehicle in front (i.e.: when a vehicle abruptly cuts in) may not be

detected and the system may not warn soon enough.

• The FCW system will be canceled automatically with a chime sound and the IBA OFF indicator light

will illuminate under the following conditions:

- When the sensor window is dirty
- When the FCW system malfunctions