Inspection Procedure

1. Perform zero point calibration of the yaw rate and acceleration sensor (see CALIBRATION  ).

   HINT:

   • When the stored zero point of the yaw rate and acceleration sensor is erased, the steering angle sensor zero point will also be erased.
   • If the zero point and output value of the yaw rate and acceleration sensor and the output value of the speed sensors are not normal, the steering angle sensor zero point cannot be acquired normally even if the vehicle is driven straight ahead at 35 km/h (22 mph) or more.

1. Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.
2. Check that the centered position of the steering wheel is correctly set while driving straight ahead.

   HINT:

   If front wheel alignment and steering position are adjusted as a result of an off-center steering wheel, acquire the yaw rate and acceleration sensor zero point again after the adjustments are completed.

   OK: The centered position of the steering wheel is correctly set. 

NG: ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION 

OK: GO TO NEXT STEP 

1. Turn the engine switch off.
2. Clear the DTC (see DTC CHECK/CLEAR  ).
3. Check if the same DTC is recorded (see DTC CHECK/CLEAR  ).

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   DTC (C1290/66) is not output	A
   DTC (C1290/66) is output	B

B: REPLACE SKID CONTROL ECU (See  REMOVAL   ) 

A: GO TO NEXT STEP 

USE SIMULATION METHOD TO CHECK