Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the powertrain control module (PCM)	Circuitry PCM	REFER to MODULE COMMUNICATIONS NETWORK .
The speed control is inoperative	PCM Speed control switch Digital transmission range (TR) sensor	Go To PINPOINT TEST A .
The speed control switch is inoperative	Digital TR sensor PCM Speed control switch	Go To PINPOINT TEST A .
The speed control indicator lamp is always on	Circuitry Instrument cluster PCM	REFER to INSTRUMENT CLUSTER to continue diagnosis of the speed control indicator.