Symptom Chart: Notes

WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.

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	Clockspring. Circuitry. Powertrain control module (PCM). Speed control switch.	GO to PINPOINT TEST A .
The speed control switch is inoperative	Powertrain control module (PCM). Speed control switch.	GO to PINPOINT TEST A .
The speed control indicator lamp is always on	Circuitry. Instrument cluster. Powertrain control module (PCM).	REFER to INSTRUMENT CLUSTER to continue diagnosis of the speed control indicator.