Diagnostic Procedure
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
- STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to TROUBLESHOOTING .)
- STEP 2. Scan tool diagnostic trouble code
Check the ASC diagnostic trouble code. (Refer to TROUBLESHOOTING .)
Q: Is the DTC set?
YES : Perform the relevant troubleshooting.
NO : Go to Step 3.
- STEP 3. Check whether the DTC is reset.
Q: Is DTC No. U0121 set?
YES : Replace the AWC-ECU. (Refer to AWC-ECU .) Then go to Step 4.
NO : Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .)
- STEP 4. Check whether the DTC is reset.
Q: Is DTC No. U0121 set?
YES : Return to Step 1.
NO : This diagnosis is complete.