Symptom Chart

Condition	Possible Sources	Action
The engine does not crank	Battery Starter motor Digital Transmission Range (TR) sensor Starter motor relay Ignition switch PCM (except police) Fuse(s) Anti-theft system Circuitry	Go to Pinpoint Test A .
Unusual starter noise	Starter motor mounting Starter motor Flexplate/ring gear	Go to Pinpoint Test B .
The engine cranks slowly	Battery Starter motor Circuitry	CARRY OUT the Starter Motor - Component Test.
The starter spins but the engine does not crank	Starter motor	INSPECT the starter motor mounting and engagement. REPAIR as necessary.
	Damaged flexplate/ring gear teeth	INSPECT the flexplate/ring gear for damaged, missing or worn teeth. REPAIR as necessary.
The engine cranks in reverse and other forward gears	Shift linkage (adjustment)	REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article.
	Digital TR sensor	REFER to AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E article.