Scan Tool Data List

WARNING: This page is about a different car, the 2007 Chevrolet Malibu. 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 OFF
Battery Voltage Signal	BCM, Power Mode	Volts	12.6 Volts
Power Mode	BCM, Power Mode	Off, Accessory, Run, Crank Request	Off
Idle Boost Level	BCM, Power Mode	Numeric	0
Run Relay Command	BCM, Power Mode	On, Off	On
Run/Crank Relay Command	BCM, Power Mode	On, Off	On

Engine Control Module (ECM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine OFF
Crank Request Signal	ECM, Electrical/Theft Data	Yes/No	No
GEN F-Terminal Signal	ECM, Electrical/Theft Data	%	0 %
GEN L-Terminal Command	ECM, Electrical/Theft Data	%	0 %
GEN L-Terminal Circuit Status	ECM, Electrical/Theft Data	Incomplete, Short Gnd/Open, Short to B+, OK	OK
Ignition 1 Signal	ECM, Electrical/Theft Data	Volts	12.6 V
PNP Switch	ECM, Electrical/Theft Data	In Gear, Park/Neutral	Park/Neutral
Starter Relay Command	ECM, Electrical/Theft Data	On/Off	Off
Starter Relay Circuit Status	ECM, Electrical/Theft Data	Incomplete, Short Gnd/Open, Short to B+, OK	OK

L61, LZ4 Transmission Control Module (TCM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine OFF
TR Sw.	TCM, Data Display, Transmission Data	Park, Reverse, Neutral, Drive 5, Drive 4, Drive 3, Drive 2, Drive 1	Park

LZ9 Transmission Control Module (TCM)

Scan Tool Parameter	Data List	Units Displayed	Typical Data Value
Ignition ON/Engine OFF
IMS	TCM, Data Display, Transmission Data	Drive 3, Drive 4\Drive 3, Park\Reverse, Reverse, Drive 3\Drive 2, Drive 2, Park, Invalid, Neutral\Drive 4, Drive 4, Neutral, Reverse\Neutral, Drive 1, Drive 2\Drive 1, Invalid	Park