STEP 2. Using scan tool (M.U.T.-IIISE), check other system DTC.
(1) Erase the DTC.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position.
Is DTC U1011 set?
Replace the ACC/FCM-ECU [Refer to GROUP 17 - Adaptive Cruise Control System (ACC) ] and then go to Step 3. Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunctions ).