Fail-Safe System Check: Description

Fail-safe system monitors system for malfunctions. If any of the following conditions are detected, SET indicator light will flash in 0.4-second intervals, and fail-safe mode will deactivate ASCD operation.

Stuck ASCD Steering Switches.
Open Or Shorted Vacuum Motor Ground/Power Circuit.
Open Or Shorted Air Valve Ground/Power Circuit.
Open Or Shorted Release Valve Ground/Power Circuit.
Faulty Vehicle Speed Sensor (VSS).
Faulty ASCD Control Unit Internal Circuit.
Faulty ASCD Cancel Switch Or Brakelight Switch.

NOTE: Listed malfunctions will cancel vehicle set speed stored, except for a faulty cancel switch, ASCD brake switch or brakelight switch. Also, when ASCD MAIN switch is turned off, vehicle set speed stored is cancelled.