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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Continuously Variable Transaxle (CVT) On-Vehicle Service - With Diagnostics) >> Diagnosis < CVT > >> Symptom Procedures >> INSPECTION PROCEDURE 1: TCM cannot Communicate with Scan Tool (M.U.T.-III) >> Diagnostic Procedure

Diagnostic Procedure

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.
  1. STEP 1. Check for short circuit in power supply line between the fusible link No.37 and the CVT control relay connector. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the connector(s) or wiring harness.
  2. STEP 2. Check for short circuit in VIG1, VIG2 line between the CVT control relay connector and the TCM connector. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Repair the connector(s) or wiring harness.
  3. STEP 3. Check for open circuit in GND1, GND2 line between the TCM connector and ground. 

    Q: Is the check result normal? 

    1. YES:  Go to Step 4.
    2. NO:  Repair the connector(s) or wiring harness.
  4. STEP 4. Retest the system. 

    Recheck the trouble symptom.

    Q: Does the malfunction take place again? 

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