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Home › Toyota › 2012 › Matrix Base, Automatic Trans › Repair and Diagnosis › External Pages › Different car › Section 76 (Vehicle Stability Control System (Diagnostic Codes & Symptom Tests)) › Vehicle Stability Control System › DTCS › DTC C1201: Engine Control System Malfunction › Procedure

DTC C1201: Engine Control System Malfunction: Procedure

WARNING: This page is about a different car, the 2011 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ENGINE CONTROL SYSTEM 
    1. Check if any engine control system DTC is output. Refer to DTC CHECK / CLEAR for 2AZ-FE, or. Refer to DTC CHECK / CLEAR for 2ZR-FE).

      Result

      Result Proceed to
      DTC is not output (for 2AZ-FE) A
      DTC is not output (for 2ZR-FE) B
      DTC is output (for 2AZ-FE) C
      DTC is output (for 2ZR-FE) D

    D → See step   5 

    C → See step   4 

    B → See step   3 

    A → See step   2 

  2. REPLACE ECM (for 2AZ-FE). Refer to  REMOVAL 
  3. REPLACE ECM (for 2ZR-FE). Refer to  REMOVAL 
  4. INSPECT ENGINE CONTROL SYSTEM (for 2AZ-FE). Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  5. INSPECT ENGINE CONTROL SYSTEM (for 2ZR-FE). Refer to  DIAGNOSTIC TROUBLE CODE CHART 
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