Symptom Chart

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. 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)	Battery junction box (BJB) fuse(s): 18 (20A). 38 (15A). 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 INFORMATION, GAUGES & WARNING DEVICES .