Scan Tool Data List

WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.

Body Control Module (BCM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine Running
Battery Voltage Signal	Data	Volts	13.9 Volts
Ignition Mode Switch	Data	IDLE/ACC/OFF/CRANK	IDLE

Engine Control Module (ECM) 4.4L (LC3)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine OFF
Crank Request Signal	Engine Electrical	Yes/No	No
GEN F-Terminal Signal	Engine Electrical	%	0%
GEN L-Terminal Signal Command	Engine Electrical	On/Off	Off
GEN L-Terminal Circuit Status	Engine Electrical	Incomplete/Short Gnd/Open/Short to B+/OK	OK
Ignition 1 Signal	Engine Electrical	Volts	Varies
PNP Switch	Engine Electrical	Park/Neutral/In Gear	Park
Starter Relay Command	Engine Electrical	On/Off	Off
Starter Relay Circuit Status	Engine Electrical	Incomplete/Short Gnd/Open/Short to B+/OK	OK

Engine Control Module (ECM) 4.6L (LH2)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine OFF
Crank Request Signal	Engine Electrical	Yes/No	No
GEN F-Terminal Signal	Engine Electrical	%	0%
GEN L-Terminal Signal Command	Engine Electrical	On/Off	Off
Ignition 1 Signal	Engine Electrical	Volts	Varies
PNP Switch	Engine Electrical	Park/Neutral/In Gear	Park
Starter Relay Command	Engine Electrical	On/Off	Off
Starter Relay Circuit Status	Engine Electrical	Fault/Indeterminate/OK	OK

Sensing and Diagnostic Module (SDM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine Running
Battery Voltage Signal	Data	Volts	13.9 Volts

Transmission Control Module (TCM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Transmission in Park
IMS	Data	Park, Park/Reverse, Reverse, Reverse/Neutral, Neutral, Neutral/Drive 4, Drive 4, Drive 4/Drive 3, Drive 3, Drive 3/Drive 2, Drive 2, Drive 2/Drive 1, Drive 1, INVALID, OPEN	Park