Inspection Procedure

1. Measure the voltage according to the value(s) in the table below.
   VOLTAGE SPECIFIED CONDITION CHART
   
   

   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 

Fig 1: Identifying D33 Transponder Key ECU Connector Terminals

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

1. Disconnect the D33 ECU connector.
2. Measure the resistance according to the value(s) in the table below.
   RESISTANCE SPECIFIED CONDITION CHART
   
   

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

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Disconnecting D33 ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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