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DIAGNOSIS TSB Revision WIRELESS CONTROL MODULE (WCM) 42C-89 STEP 3. Using scan tool MB991958, check for MFI system YES : Troubleshoot the MFI system (Refer to GROUP 13A, ). NO : Go to Step 4. STEP 4. Using scan tool MB991958, check for WCM YES : Troubleshoot the WCM (Refer to NO : Go to Step 5. STEP 5. Check that the engine starts. YES : The procedure is complete. . When the cause of the failure cannot be tracked down by the ). |