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Symptom Chart

WARNING: This page is about a different car, the 2009 Ford Flex. However, it is still accessible from the selected car via links, so may be relevant.

PCM DTC CHART

DTC	Description	Action
P0579	Cruise Control Multifunction Input A Circuit Range/Performance	Go To PINPOINT TEST C .
P0581	Cruise Control Multi-Function Input A Circuit High	Go To PINPOINT TEST C .
P1703	Brake Switch Out Of Self Test Range	Go To PINPOINT TEST B .
All other DTCs	-	REFER to the INTRODUCTION - GASOLINE MODELS .

DTC CHARTS

Condition	Possible Sources	Action
The speed control is inoperative	Wiring, terminals or connectors PCM not configured for speed control Speed control switch Digital Transmission Range (TR) sensor Vehicle speed signal PCM	Go To PINPOINT TEST A .
The speed control indicator lamp is never/always on	Wiring, terminals or connectors PCM Instrument Cluster (IC)	REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
The speed control switches do not operate correctly	Wiring, terminals or connectors Speed control switch Clockspring PCM	Go To PINPOINT TEST C .