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Inspection Procedure

  1. CHECK WIRE HARNESS (DLC3 - ECM AND BODY GROUND) 
    1. Disconnect the E5 ECM connector.
    2. Measure the resistance of the wire harness side connectors.

      Standard: 

      DLC3 - ECM AND BODY GROUND RESISTANCE

      Tester Connection Specified Condition
      D1-13 (TC) - E5-3 (TC) Below 1 ohms
      D1-13 (TC) - Body ground 10 k ohms or higher
      D1-4 (CG) - Body ground Below 1 ohms
      Fig 1: Disconnecting E5 ECM Connector
      G04107248Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: REPLACE ECM (See  REPLACEMENT  )