Symptom Chart

Condition	Possible Sources	Action
The speed control is inoperative - no flash codes	Fuse(s) Circuitry Clockspring Speed control actuator Speed control switch	Go to Pinpoint Test A .
The set speed fluctuates	Speed control cable Speed control actuator	Go to Pinpoint Test B .
	Engine controls	REFER to the Introduction - Gasoline Engines article.
The speed control does not disengage when the brakes are applied	Circuitry Speed control actuator Speed control deactivator switch	Go to Pinpoint Test C .
The speed control does not deactivate when the clutch is applied	Circuitry Speed control actuator Clutch pedal position (CPP) switch	Go to Pinpoint Test D .
The COAST switch is inoperative	Speed control switch Speed control actuator	Go to Pinpoint Test E .
The RES switch is inoperative	Speed control switch Speed control actuator	Go to Pinpoint Test E .
The OFF switch is inoperative	Speed control switch Speed control actuator	Go to Pinpoint Test E .
Flash with last switch pressed and dynamic pull occurs at the throttle	None	Test passed.
The speed control is inoperative - flash with last switch pressed, but no dynamic pull occurs at the throttle and the speed control is inoperative	Speed control cable Speed control actuator	Go to Pinpoint Test F .
Flash code 2 - stoplamp switch circuit failure	Circuitry Speed control actuator Stoplamp switch CPP switch	Go to Pinpoint Test G .
Flash code 3 - speed control deactivator circuit failure	Fuse Circuitry Speed control deactivator switch	Go to Pinpoint Test H .
Flash code 4 - vehicle speed sensor (VSS) circuit failure	Circuitry Speed control actuator PCM	Go to Pinpoint Test I .
Flash code 5 - damaged speed control actuator	Speed control actuator	INSTALL a new speed control actuator. REFER to Speed Control Actuator . CARRY OUT the self-test after the repair.
The speed control indicator does not operate correctly	Circuitry Instrument cluster (IC) Speed control actuator	REFER to INSTRUMENT CLUSTER article to continue diagnosis of the speed control indicator.