STEP 1. Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line.
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the DTC.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position (Engine running). Check if the DTC is set.
Is the DTC set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to GROUP 35C - Hydraulic Unit ). Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).
STEP 4. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the DTC code.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position (Engine running).
Is the DTC set?
Replace the EPS motor (EPS-ECU). (Refer to ). Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunctions ).