Initial Inspection and Diagnostic Overview

1. Turn ignition switch ON.
2. Turn ASCD main switch to ON position and check if the "SET indicator" blinks.
If the indicator lamp blinks, check the following.
- ASCD steering switch. Refer to "DIAGNOSTIC PROCEDURE 3".




3. Drive the vehicle at more than 48 km/h (30 MPH) and push SET/COAST switch.
If the indicator lamp blinks, check the following:
- Vehicle speed sensor. Refer to "DIAGNOSTIC PROCEDURE 4".
- ASCD pump circuit. Refer to "DIAGNOSTIC PROCEDURE 5".
- Replace control unit.




4. Depress brake pedal slowly (brake pedal should be depressed more than 5 seconds).
If the indicator lamp blinks, check the following:
- ASCD brake/stop lamp switch. Refer to "DIAGNOSTIC PROCEDURE 2".

5. END. (System is OK.)