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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FUSE (ECU-B) 
    1. Remove the ECU-B fuse from the instrument panel J/B.
    2. Measure the resistance of the fuse.

      Standard resistance: Below 1 Ω 

    NG: REPLACE FUSE 

    OK: Go to next step. 

  2. CHECK WIRE HARNESS (TRANSPONDER KEY ECU - BATTERY AND BODY GROUND) 
    1. Disconnect the T5 ECU connector.
    2. Measure the voltage of the wire harness side connector.

      Standard voltage 

      VOLTAGE CHART

      Tester Connection Specified Condition
      T5-1 (+B) - Body ground 10 to 14 V
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      T5-14 (GND) - Body ground Below 1 Ω
      Fig 1: Identifying T5 ECU Connector Terminal
      G05131874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE TRANSPONDER KEY ECU ASSEMBLY 

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