Symptom Table

SYMPTOM TABLE

Condition	Possible Sources	Action
The speed control is inoperative	Circuitry Speed control switches Digital transmission range (TR) sensor Vehicle speed signal Powertrain control module (PCM)	GO to PINPOINT TEST A .
The speed control indicator lamp is never/always on	Circuitry PCM Instrument cluster	REFER to INSTRUMENT CLUSTER .
The set speed fluctuates	Circuitry PCM Output shaft speed (OSS) sensor	REFER to the INTRODUCTION - GASOLINE article to continue diagnosis of the OSS sensor.