54A-SYMPTOM CHART

TROUBLE SYMPTOM CHART

Prior to troubleshooting, check whether a malfunction is caused by external factor or vehicle conditions.

caution

The system may not operate correctly in the following conditions. If required, set the LDW switch to "OFF."

When driving on a road whose lane markings (white or yellow) are worn out or smeared with dirt to an extent not recognizable by the system.
When lane markings are vague, typically during a drive in the rain, snow, fog or dark area, or when running against the sun.
When the vehicle is moving in a place where lane markings are interrupted, such as a toll booth entrance and motorway junction.
When running on a road portion with incompletely removed old lane markings, shadows, lingering snow, truck-like puddles mistakable for lane markings (especially after the rain when road surface is reflecting light) or similar confusing factors.
When running in a lane other than the cruising lane and passing lane.
When running beside a closed lane section or in a provisional lane in a traffic work zone.
When running in an extremely narrow lane.
When the following distance between your vehicle and a vehicle in front becomes extremely reduced (especially when a marking is hidden by a vehicle in front this is running too close to the marking).
When entering a junction or other point of road where lanes are laid out complicatedly.
When passing a road section where the number of lanes increases/decreases or multiple lanes are crossing each other.
When the lane is marked by double or otherwise special lines.
When driving on a winding or rough road.
When driving on a slippery road covered by rain water, snow, ice, etc.
When passing through a place where the brightness suddenly changes, like the inlet or outlet of a tunnel.
When turning steep curves.
When the road surface is reflecting the light shining from the direction opposite to the running direction.
Vehicle largely lurches when it is running over steps or other irregularities of the road surface.
When the headlight illumination is inadequate because of contaminated or deteriorated lenses or improperly aimed headlights.
When the vehicle is leaning much to one side due to heavy luggage on it or improperly adjusted tire pressures.
When oncoming vehicles’ headlights shine the sensor.
When the vehicle is equipped with nonstandard tires (including excessively worn tires and temporary spare tire), uses snow traction device (tire chains), or has non-specified components such as a modified suspension.
When the windscreen is covered with water droplets, snow, dust, etc.

Follow the instructions given below to keep your LDW in good operating conditions.

Always keep the windscreen clean.
Avoid applying a strong shock or pressure to the sensor. Do not attempt to detach or disassemble it.
Do not put anything like a sticker on the area in front of the sensor of the windscreen.
Use only MITSUBISHI MOTORS GENUINE parts when replacing the windscreen wipers.

Trouble symptom	Inspection procedure number	Reference page
Scan tool (M.U.T.-IIISE) communication with FCM/LDW/AHB system is impossible.	-	Refer to FCM/LDW/AHB-ECU .
The system is not turned on and off by operating the LDW switch.	1
The LDW does not enter the warning monitor mode under some circumstances.	2