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).
Is any DTC set?
Replace the column switch assembly (integrated with steering wheel sensor) (Refer to GROUP 54A - Column switch assembly ) and then go to Step 4. 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.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position (Engine running).
Is any DTC set?
Replace the EPS motor (EPS-ECU) (Refer to ). This diagnosis is complete.