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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Supplemental Restraint System (SRS) - With Diagnostics) >> SRS Air Bag Diagnosis >> Symptom Procedures >> Inspection Procedure 1: Communication between scan tool and SRS-ECU cannot be established >> Diagnosis

Inspection Procedure 1: Communication between scan tool and SRS-ECU cannot be established: 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.
  1. STEP 1. Using scan tool (M.U.T.-III), diagnose the CAN bus line. 
    CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
    1. Connect scan tool (M.U.T.-III). Refer to HOW TO CONNECT THE SCAN TOOL 
    2. Turn the ignition switch to the "ON" position.
    3. Diagnose the CAN bus line.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the CAN bus line found to be normal? 

    1. YES:  Check and repair the power supply circuit system (Refer to CHECK CHART FOR TROUBLE SYMPTOMS  ).
    2. NO:  Repair the CAN bus line (Refer to DIAGNOSIS ).