INSPECTION PROCEDURE 14: Sometimes the rain sensitive AUTO wiper function works even though there is no rainfall < Vehicles with LDW camera (rain sensor) >: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. LDW camera (rain sensor) mounting surface check
Visually check the presence of scratches or air bubbles (diameter of 5 mm or more) on the windshield to which the lighting control sensor is installed.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Replace the windshield (Refer to WINDSHIELD REMOVAL AND INSTALLATION ).
STEP 2. LDW camera (rain sensor) mounting surface check
Check that the LDW camera (rain sensor) is installed to the windshield glass correctly.

Q: Is the check result normal?
- YES: After the LDW camera (rain sensor) has been initialized (Refer to HOW TO INITIALIZE THE LDW CAMERA (RAIN SENSOR) ), go to Step 3.
- NO: Install the LDW camera (rain sensor) to the windshield glass correctly (Refer to LDW CAMERA REMOVAL AND INSTALLATION ).
STEP 3. Windshield wiper operation check
Check that the windshield wipers work normally.

Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Refer to TROUBLE SYMPTOM CHART .
STEP 4. Using scan tool (M.U.T.-III), read the diagnostic trouble code.
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch to ON.
3. Check if an ETACS-related diagnosis trouble code is stored.
4. Turn the ignition switch to OFF.
Q: Is the DTC stored?
- YES: Diagnose the ETACS-ECU. (Refer to DIAGNOSIS TROUBLE CODE CHART .)
- NO: Go to Step 5.
STEP 5. Using scan tool (M.U.T.-III), read the diagnostic trouble code.
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch to ON.
3. Check if an LDW-ECU (rain sensor)-related diagnosis trouble code is stored.
4. Turn the ignition switch to OFF.
Q: Is the DTC stored?
- YES: Diagnose the LDW-ECU (rain sensor). (Refer to DIAGNOSIS TROUBLE CODE CHART .)
- NO: Go to Step 6.
STEP 6. Check the trouble symptom.
After the LDW camera (rain sensor) has been initialized, check the LDW camera (rain sensor).
1. Windshield glass surface should be dry.
2. Pour water to the windshield glass surface where the LDW camera (rain sensor) is installed.
Q: Does the windshield wiper operate?

Operate: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).

Does not operate: Troubleshoot the rain-sensitive wiper function (Refer to INSPECTION PROCEDURE 13 ).