Infiniti EX35. Manual - part 413

CCS

LDW & LDP SYSTEM SYMPTOMS

CCS-187

< SYMPTOM DIAGNOSIS >

[LDW & LDP]

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SYMPTOM DIAGNOSIS

LDW & LDP SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000003514641

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

Indicator/warning lamps do not il-
luminate when ignition switch 
OFF 

⇒

 ON.

Lane departure warning 
lamp (Yellow) does not illumi-
nate.

• Lane departure warning lamp 

signal (CAN)

- Unified meter and A/C amp.
- Lane camera unit
• Lane departure warning lamp

(Combination meter)

•

LANE CAM Active test

“LANE DEPARTURE W/L”

•

METER/M&A Data monitor

“LANE W/L”

LDP ON indicator lamp 
(Green) does not illuminate.

• LDP ON indicator lamp signal 

(CAN)

- Unified meter and A/C amp.
- Lane camera unit
• LDP ON indicator lamp

(Combination meter)

•

LANE CAM Active test

“LDP ON IND”

•

METER/M&A Data monitor

“LDP IND”

LDW ON indicator (on the 
LDW switch) does not illumi-
nate.

• Harness between lane cam-

era unit and LDW switch.

• LDW  ON  indicator

(LDW switch)

• Lane camera unit

LDW ON indicator circuit

CCS-162

Lane departure warning 
lamp (Yellow) and LDP ON 
indicator lamp (Green) do not 
illuminate.

• Combination meter
• Unified meter and A/C amp.
• Lane camera unit

—

All of indicator/warning 
lamps do not illuminate;
• Lane departure warning 

lamp (Yellow)

• LDP ON indicator lamp 

(Green)

• LDW  ON  indicator

• Power supply and ground cir-

cuit of lane camera unit

• Lane camera unit

Power supply and ground circuit 
of lane camera unit

CCS-159

LDW system is not activated.
(Indicator/warning lamps illumi-
nate when ignition switch OFF 

⇒

 

ON.)

LDW ON indicator is not 
turned ON 

⇔

 OFF when op-

erating LDW switch.

• Harness between lane cam-

era unit and LDW switch.

• Harness between LDW 

switch and ground.

• Lane camera unit

LDW switch circuit

CCS-160

Lane departure warning 
buzzer is not sounding.
(Lane departure warning 
lamp is activated.)

• Harness between the fuse 

and lane departure warning 
buzzer.

• Harness between lane cam-

era unit and lane departure 
warning buzzer.

• Harness between lane depar-

ture warning buzzer and 
ground.

• Lane departure warning buzz-

er

• Lane camera unit

Lane departure warning buzzer 
circuit

CCS-164

Lane departure warning 
lamp is not activated.
(Lane departure warning 
buzzer is sounding.)

Lane camera unit

—

CCS-188

< SYMPTOM DIAGNOSIS >

[LDW & LDP]

LDW & LDP SYSTEM SYMPTOMS

LDP system is not activated.
(LDW system is functioning nor-
mally)

LDP ON indicator lamp is not 
turned ON 

⇔

 OFF when op-

erating LDP ON switch.

LDP ON switch
(ICC steering switch)

LDP ON switch
(ICC steering switch)

Warning is functioning but 
yawing is not functioning.

—

• Cause of auto-cancel

CCS-130

• Normal operating condition

CCS-189

Yawing is functioning but 
warning is not functioning.

• ABS actuator and electric unit 

(control unit)

• Lane camera unit

—

Warning functions are not timely.

(Example)

• Does not function when driving on lane markers.
• Functions when driving in a lane.
• Functions in a different position from the actual position.

• Camera aiming adjustment
• Lane camera unit

Camera aiming adjustment

CCS-112

Functions when changing the course in direction of the turn sig-
nal.

Turn signal
• BCM
• Lane camera unit

LANE CAM Data monitor

“TURN SIGNAL”

Symptom

Possible cause

Inspection item/Reference page

CCS

NORMAL OPERATING CONDITION

CCS-189

< SYMPTOM DIAGNOSIS >

[LDW & LDP]

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NORMAL OPERATING CONDITION

Description

INFOID:0000000003514642

LANE DEPARTURE WARNING (LDW)

• LDW system is only a warning device to inform the driver of a potential unintended lane departure. It does

not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay alert, drive safely, keep
the vehicle in the traveling lane, and be in control of the vehicle at all times.

• LDW system does not operate at speeds below approximately 72 km/h (45 MPH) or if it cannot detect lane

markers.

• Excessive noise interfere with the warning sound, and the buzzer may not be heard.
• LDW system may not function properly under the following conditions:
- On roads where there are multiple parallel lane markers; lane markers that are faded or not painted clearly;

yellow painted lane markers; non-standard lane markers; or covered with water, dirt or snow, etc.

- On roads where the discontinued lane markers are still detectable.
- On roads where there are sharp curves.
- On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or

lines remaining after road repairs. (The LDW system could detect these items as lane markers.)

- On roads where the traveling lane merges or separates.
- When the vehicle's traveling direction does not align with the lane marker.
- When traveling close to other vehicle in front of the vehicle, which obstructs the lane camera unit detection

range.

- When rain, snow or dirt adheres to the windshield in front of the lane camera unit.
- When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly.
- When strong light enters the lane camera unit. (For example, the light directly shines on the front of the vehi-

cle at sunrise or sunset.)

- When a sudden change in brightness occurs. (For example, when the vehicle enters or exits a tunnel or

under a bridge.) 

LANE DEPARTURE PREVENTION (LDP)

• LDP system does not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay alert,

drive safely, keep the vehicle in the traveling lane, and be in control of vehicle at all times.

• LDP system is primarily intended for use on well-developed freeways or highways. It may not detect the lane

markers in certain roads, weather or driving conditions.

• Using the LDP system under some conditions of road, lane marker or weather, or when driver changes lanes

without using the turn signal could lead to an unexpected system operation. In such conditions, driver needs
to correct the vehicle's direction with driver's steering operation to avoid accidents.

• When the LDP system is operating, avoid excessive or sudden steering maneuvers. Otherwise, driver could

lose control of the vehicle.

• The LDP system does not operate at speeds below approximately 72 km/h (45 MPH) or if it cannot detect

lane markers.

• The LDP system may not function properly under the following conditions, and do not use the LDP system:
- During bad weather (rain, fog, snow, wind, etc.).
- When driving on slippery roads, such as on ice or snow, etc.
- When driving on winding or uneven roads.
- When there is a lane closure due to road repairs.
- When driving in a makeshift lane.
- When driving on roads where the lane width is too narrow.
- When driving without normal tire conditions (for example, tire wear, low tire pressure, installation of spare

tire, tire chains, non-standard wheels).

- When the vehicle is equipped with non-original brake parts or suspension parts.
• Excessive noise does interfere with the warning sound, and the buzzer may not be heard.
• The functions of the LDP system (warning and brake control assist) may or may not operate properly under

the following conditions:

•
- On roads where there are multiple parallel lane markers; lane markers that are faded or not painted clearly;

yellow painted lane markers; non-standard lane markers or covered with water, dirt or snow, etc.

- On roads where discontinued lane markers are still detectable.
- On roads where there are sharp curves.
- On roads where there are sharply contrasting objects, such as shadows, snow, water, wheel ruts, seams or

lines remaining after road repairs (The LDP system could detect these items as lane markers.)

CCS-190

< SYMPTOM DIAGNOSIS >

[LDW & LDP]

NORMAL OPERATING CONDITION

- On roads where the traveling lane merges or separates.
- When the vehicle's traveling direction does not align with the lane marker.
- When traveling close to other vehicle in front of the vehicle, which obstructs the lane camera unit detection

range.

- When rain, snow or dirt adheres to the windshield in front of the lane camera unit.
- When the headlights are not bright due to dirt on the lens or if the aiming is not adjusted properly.
- When strong light enters the lane camera unit (For example, the light directly shines on the front of the vehi-

cle at sunrise or sunset.)

- When a sudden change in brightness occurs (For example, when the vehicle enters or exits a tunnel or

under a bridge.)

• While the LDP system is operating, driver may hear a sound of brake operation. This is normal and indicates

that the LDP system is operating properly.