Inspection Procedure

HINT:

• When U0121/94, U0123/62, U0124/95 or U0126/63 ARE OUTPUT ACCOMPANIED WITH C1231/31, inspect and repair the trouble areas indicated by U0121/94, U0123/62, U0124/95 or U0126/63 first.
• When the speed sensor or the yaw rate sensor has trouble, DTCs for the steering angle sensor may be output even when the steering angle sensor is normal. When DTCs for the speed sensor or yaw rate sensor are output accompanied with other DTCs for the steering angle sensor, inspect and repair the speed sensor and yaw rate sensor first, and then inspect and repair the steering angle sensor.

1. CHECK TERMINAL VOLTAGE (STEERING ANGLE SENSOR CONNECTOR) 
   1. Remove the steering wheel and column lower cover.
   2. Disconnect the steering angle sensor connector.
   3. Turn the ignition switch to the ON position.
   4. Measure the voltage according to the value (s) in the table below.

   Standard: 

   TERMINAL VOLTAGE
   
   

   Tester Connection	Specified Condition
   IG (S7-1) - ESS (S7-2)	11 to 14 V
   BAT (S7-3) - ESS (S7-2)	11 to 14 V

   Fig 1: Checking Terminal Voltage

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   2. OK: REPLACE STEERING ANGLE SENSOR