Inspection Procedure

1. Disconnect the connector (S12) from the steering sensor.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED VALUE
   
   

   Tester Connection	Condition	Specified value
   S12-2 (ESS) - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value(s) in the table below.
   Fig 1: Identifying Steering Sensor Connector Terminals (Wire Harness View)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage 

   TESTER CONNECTION SPECIFIED VALUE
   
   

   Tester Connection	Condition	Specified value
   S12-1 (IG1) - Body ground	IG switch ON	10 to 14 V

   NOTE: Perform the measurement from the back of the connector with the connector connected.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK : REPLACE STEERING SENSOR