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Home >> Mitsubishi >> 2017 >> Lancer SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Continuously Variable Transaxle (CVT) Diagnosis & On-Vehicle Service - With Diagnostics - Lancer) >> Diagnosis >> Diagnostic Trouble Code Procedures >> LOGIC FLOW CHARTS (Monitor Sequence-Input Rationality-High) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
  1. STEP 1. Using scan tool MB991958, diagnose the CAN bus lines. 

    Use scan tool MB991958 to perform the CAN bus diagnosis.

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Go to "CAN Troubleshooting."
  2. STEP 2. M.U.T.-III diagnostic trouble code 

    Check if the engine-related diagnostic trouble code is stored.

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Go to "Engine Troubleshooting."
  3. STEP 3. Symptom recheck after erasing diagnostic trouble code 

    Q: Is the check result normal? 

    1. YES:  Intermittent malfunction
    2. NO:  Replace TCM.
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