Inspection Procedure

1. Disconnect the O2 switch connector.
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION - SPECIFIED CONDITION (RESISTANCE)
   
   

   Tester Connection	Specified Condition
   4 - Body ground	Below 1 Ω

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 1: Identifying O2 Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : GO TO NEXT STEP 

1. Measure the resistance of the switch.

   Standard resistance 

   TESTER CONNECTION - SPECIFIED CONDITION (RESISTANCE)
   
   

   Tester Connection	Switch Condition	Specified Condition
   2 - 4	Continuously press transmission control switch	Below 1 Ω
   2 - 4	Release transmission control switch	10 kΩ or higher

NG : REPLACE TRANSMISSION CONTROL SWITCH 

Fig 2: Identifying O/D Main Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK : GO TO NEXT STEP 

1. Disconnect the E5 ECM connector.
2. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION - SPECIFIED CONDITION (RESISTANCE)
   
   

   Tester Connection	Switch Condition	Specified Condition
   E5-6 (ODMS) - Body ground	Continuously press transmission control switch	Below 1 Ω
   E5-6 (ODMS) - Body ground	Release transmission control switch	10 kΩ or higher

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 3: Disconnecting E5 ECM Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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