Inspection Procedure

1. Disconnect the P33 certification ECU connector and P31 door control receiver connector.
2. Measure the voltage resistance according to the value(s) in the table below.

   Standard 

   CERTIFICATION ECU - DOOR CONTROL RECEIVER
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   RC0 (P33-29) - +5 (P31-2)	Always	Below 1 Ω
   +B1 (P33-1) - Body ground	Always	10 to 14 V
   RC0 (P33-29) - Body ground	Always	10 kΩ or higher
   E (P33-17) - Body ground	Always	Below 1 Ω

   Fig 1: Identifying P33 Certification ECU And P31 Door Control Receiver Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the P33 connector.
2. Measure the voltage according to value(s) in the table below.

   Standard voltage 

   CERTIFICATION ECU
   
   

   Symbol (Tester Connection)	Condition	Specified Condition
   RCO (P33-29) - E (P33-17)	Engine switch OFF, all doors closed and transmitter switch not pressed	Below 1 V
   	Engine switch OFF, all doors closed and transmitter switch pressed	4.6 to 5.4 V
   +B1 (P33-1) - E	Always	10 to 14 V

   Fig 2: Identifying P33 Connector Terminal

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CERTIFICATION ECU 

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