Inspection Procedure 20: The FCM is cancelled in conjunction with a warning message while the FCM is activated: 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. Scan tool (M.U.T.-III) CAN bus diagnostics
Use scan tool (M.U.T.-III) to diagnose the CAN bus lines.

Q: Is the check result normal?
1. YES: Go to Step 2.
2. NO: Repair the CAN bus lines (Refer to CAN BUS DIAGNOSTICS TABLE ).
STEP 2. Scan tool (M.U.T.-III) DTC of other system
Use scan tool (M.U.T.-III) to check that the DTC is stored in the ACC/FCM-ECU.

Q: Is the DTC stored?
1. YES: Troubleshoot for the relevant DTC (Refer to CHECK CHART FOR DIAGNOSTIC TROUBLE CODES TABLE ).
2. NO: Go to Step 3.
STEP 3. Scan tool (M.U.T.-III) DTC
Use scan tool (M.U.T.-III) to check the DTC for the ASC system (Refer to DIAGNOSTIC TROUBLE CODE CHART ).

Q: Is the DTC stored?
1. YES: Carry out the diagnosis for the DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART ).
2. NO: Go to Step 4.
STEP 4. Retest the system.
Check that the FCM control operates normally.

Q: Is the check result normal?
1. YES: Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
2. NO: Replace the ACC/FCM-ECU (Refer to ADAPTIVE CRUISE CONTROL SYSTEM (ACC) ).