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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BATTERY) 
    Fig 1: Identifying Transponder Key ECU Connector
    G05195900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      T10-1 (+B) - Body ground Always 10 to 14 V
      T10-2(IG) - Body ground Ignition switch OFF Below 1 V
      T10-2(IG) - Body ground Ignition switch ON 10 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : Go to Next Step. 

  2. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BODY GROUND) 
    1. Disconnect the T10 ECU connector.
      Fig 2: Identifying T10 ECU Connector
      G05195901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      T10-16 (GND) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

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