Diagnostic Procedure
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- STEP 1. M.U.T.-III CAN bus diagnostics
Use M.U.T.-III to perform the CAN bus diagnosis.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. Refer to DIAGNOSIS .
- STEP 2. M.U.T.-III diagnosis code
Check if the engine-related diagnosis code is set.
Q: Is diagnosis code set?
YES : Diagnose the engine control system.
NO : Go to Step 3.
- STEP 3. Symptom recheck after erasing diagnosis code
Q: Is the check result normal?
YES : Intermittent malfunction
NO : Replace TCM.