Inspection Procedure 13: The turn-signal indicator lights do not illuminate: 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. Turn-signal light check
Check that the turn-signal light flashes normally when the turn-signal switch is operated.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Refer to INSPECTION PROCEDURE 10 "NONE OF THE TURN-SIGNAL LIGHTS ILLUMINATE" .
STEP 2. Using scan tool (M.U.T.-III), diagnose the CAN bus line
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (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 SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
- YES: Go to Step 3.
- NO: Repair the CAN bus line (Refer to DIAGNOSIS ).
STEP 3. Using scan tool (M.U.T.-III), read the ETACS diagnostic trouble code
Check if DTC is stored in the ETACS-ECU.

Q: Is the DTC stored?
- YES: Troubleshoot the ETACS-ECU. Refer to DIAGNOSTIC TROUBLE CODE CHART .
- NO: Go to Step 4.
STEP 4. Check by scan tool (M.U.T.-III) "Special Function"
Using scan tool (M.U.T.-III), select "Test" from the special function of the combination meter. Execute the following item to check the turn-signal light indicator. (Refer to SPECIAL FUNCTION TABLE )
- Item 5: Illumination (AUTO)
- Item 6: Indicator (AUTO)
Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Troubleshoot the combination meter. Refer to DIAGNOSIS .
STEP 5. Retest the system
Check that the turn-signal light indicator illuminate normally.

Q: Is the check result normal?
- YES: The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
- NO: Replace the ETACS-ECU.