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Inspection Procedure

  1. INSPECT TRANSPONDER KEY ECU ASSEMBLY 
    Fig 1: Identifying Transponder Key ECU Assembly Connector Terminals
    G05005528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage according to the value(s) in the table below.

    Voltage 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Condition Specified Condition
    D33-1 (+B) - D33-16 (GND) Always 10 to 14 V
    D33-2 (IG) - D33-16 (GND) Ignition switch OFF Below 1 V
    D33-2 (IG) - D33-16 (GND) Ignition switch ON 10 to 14 V

    NG: Go to step 2 

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

  2. CHECK HARNESS AND CONNECTOR (GROUND CIRCUIT) 
    Fig 2: Identifying D33 ECU Connector Terminal
    G05005529Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D33 ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

    Resistance 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Condition Specified Condition
    D33-16 (GND) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

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