Inspection Procedure 7

Auto-cruise control cannot be set.

Comment
The cause is probably that the fail-safe function is cancelling auto-cruise control. In this case, the scan tool can be used to check the trouble symptoms in each system by inspecting the diagnostic trouble codes. The scan tool can also be used to check if the circuits of each input switch are normal or not by inspecting the input switch codes.

Probable cause
- Malfunction of the auto-cruise control main switch
- Malfunction of the auto-cruise control switch
- Malfunction of the clock spring
- Malfunction of the harnesses or connectors
- Malfunction of the auto-cruise control-ECU

Inspection Procedure 7: