Inspection Procedure 1: Scan tool (M.U.T.-III) communication with ASC system is impossible: Notes
CAUTION:
- If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to Diagnosis - CAN BUS DIAGNOSTICS TABLE ).
- If the power is supplied with the ground circuit of CAN communication device open circuited, an electric potential abnormality may occur to the CAN bus lines.
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
- When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the calibration of the G and yaw rate sensor and the steering wheel sensor (Refer to G AND YAW RATE SENSOR CALIBRATION and STEERING WHEEL SENSOR CALIBRATION ).