Inspection Procedure 15: The Bending Lamp Illumination Timing by the Steering Operation is Failed.


caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM



Vehicle speed (km/h)
 Rotation angle from neutral position of steering wheel (°)
0
 104

PROBABLE CAUSES



  • Malfunction of the steering wheel sensor
  • Malfunction of the AFS-ECU

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III data list




  • Turn the steering wheel.
Item No.
 Item name
 Normal condition
Item 5
 Steering angle (CAN input)
 The display on M.U.T.-III changes together with the steering wheel operation.
Item 7
 SAS status (CAN input)
 Normal
OK: Normal condition is displayed.

Q. Is the check result normal?





STEP 2. Steering wheel sensor check



Q. Is the check result normal?





STEP 3. Retest the system



Q. Is the check result normal?