STEP 1. Brake pedal check
STEP 2. Check for stoplight switch installation
STEP 3. Stoplight switch continuity check
STEP 5. Brake booster check
STEP 6. Using scan tool (M.U.T.-IIISE), check other system's data list
STEP 7. 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.
Is DTC C1000 set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunctions ).