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Inspection Procedure

  1. CHECK ENGINE CONTROL SYSTEM 
    1. Check if the engine control system DTC is output (See DTC CHECK / CLEAR for 2AZ-FE, or DTC CHECK / CLEAR for 2ZR-FE).

      Result 

      RESULT CHART

      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

    B: REPLACE ECM (for 2ZR-FE)  (See REMOVAL )

    C: INSPECT ENGINE CONTROL SYSTEM (for 2AZ-FE)  (See DIAGNOSTIC TROUBLE CODE CHART )

    D: INSPECT ENGINE CONTROL SYSTEM (for 2ZR-FE)  (See DIAGNOSTIC TROUBLE CODE CHART )

    A: REPLACE ECM (for 2AZ-FE)  (See REMOVAL )