Inspection Procedure 13: The rain sensitive AUTO wiper function does not work at all < 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 LDW camera (rain 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. Check whether the LDW camera (rain sensor) is mounted correctly.
Check whether the LDW camera is securely installed to the windshield glass.
Q: Is the check result normal?
- YES: Go to Step 3.
- NO: Reinstall the LDW camera to the windshield glass correctly. (Refer to LDW CAMERA REMOVAL AND INSTALLATION ), and initialize the LDW camera (rain sensor). (Refer to HOW TO INITIALIZE LDW CAMERA .)
- 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).
- Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
- Turn the ignition switch to ON.
- Check if an LDW-ECU (rain sensor)-related diagnosis trouble code is stored.
- 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 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).
- Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
- Turn the ignition switch to ON.
- Check if an ETACS-related diagnosis trouble code is stored.
- 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 6.
- STEP 6. Using scan tool (M.U.T.-III), check data list. 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).
- Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
- Turn the ignition switch to OFF.
- Use the LDW-ECU service data to check the signals related to the on/off status of the rain sensor.
Q: Is the check result normal?
- YES: Go to Step 7.
- NO: Diagnose the LDW-ECU (rain sensor). (Refer to DIAGNOSTIC TROUBLE CODE CHART .)
- STEP 7. Using scan tool (M.U.T.-III), check data list. 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).
- Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
- Turn the ignition switch to OFF.
- Use the LDW-ECU service data to check the signals related to the operation of the automatic wiper function.
Q: Is the check result normal?
- YES: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .)
- NO: Go to Step 8.
- STEP 8. Check the trouble symptom.
Initialize the LDW camera (rain sensor). (Refer to HOW TO INITIALIZE LDW CAMERA .)
After the LDW camera (rain sensor) has been initialized, check the system operation according to the procedure below.
- Check that the surface of windshield is dry.
- Apply water to the LDW camera (rain sensor) sensing portion on the windshield.
Q: Does the wiper work?
- Operate: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .)
- Not operate: Replace LDW-ECU.