GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: Key On, Engine Off

Battery 1

BCM Data

Volts

9 to 16 volts

Decoded Switch State

BCM Data

Undecided, Lock, Unlock, Off

Off

Door Lock Switch

BCM Data

Volts

13 volts

Driver Door Switch

BCM Data

open/closed

closed

Driver Door Unlock Fdbk.

BCM Data

ON/OFF

OFF

Fob ID

BCM Data

None, Fob 1, Fob 2, Fob 3, Fob 4

Fob 1

Lock All Doors Fdbk.

BCM Data

ON/OFF

ON

Pass Door Switch

BCM Data

open/closed

closed

RKE Low Battery

BCM Data

Yes/No

NO

RKE Sinc

BCM Data

Yes/No

YES

RKE Lock Button

BCM Data

ON/OFF

OFF

RKE Unlock Button

BCM Data

ON/OFF

OFF

RKE Trunk Button

BCM Data

ON/OFF

OFF

RKE Panic Button

BCM Data

ON/OFF

OFF

Trunk Release

BCM Data

ON/OFF

OFF

Unlock All Doors Fdbk.

BCM Data

ON/OFF

ON