Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Corolla and 2005 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WIRE HARNESS (IG1, ESS)

Disconnect the connector (S12) from the steering sensor.

Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED VALUE

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

Measure the voltage according to the value (s) in the table below.

Fig 1: Identifying Steering Sensor Wire Harness View
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

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 WIRE HARNESS OR CONNECTOR
OK: GO TO NEXT STEP

REPLACE STEERING SENSOR (SEE STEERING SENSOR )