GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Driver Door Module (DDM)

Operating Conditions: Ignition ON, engine OFF

Ext. Driver Door Handle Switch

Data

Active/Inactive

Inactive

Int. Driver Door Handle Switch

Data

Active/Inactive

Inactive

Passenger Door Module (PDM)

Operating Conditions: Ignition ON, engine OFF

Ext. Psgr. Door Handle Switch

Data

Active/Inactive

Inactive

Int. Psgr. Door Handle Switch

Data

Active/Inactive

Inactive

Remote Control Door Lock Receiver (RCDLR)

Operating Conditions: Ignition ON, engine OFF

Battery Voltage Signal

Data

Volts

12.6

Ext. Driver Door Handle Switch

Doors & Hatch

Active/Inactive

Inactive

Ext. Psgr. Door Handle Switch

Doors & Hatch

Active/Inactive

Inactive

Ignition Mode Switch

Data

Idle/Crank/Accy/Off

Off

Int. Driver Door Handle Switch

Doors & Hatch

Active/Inactive

Inactive

Int. Psgr. Door Handle Switch

Doors & Hatch

Active/Inactive

Inactive

Key Fob 1 Battery Signal

Key FOB Information

Volts/Not Present

2.0

Key Fob 1 Low Voltage

Key FOB Information

OK/Low

OK

Key Fob 2 Battery Signal

Key FOB Information

Volts/Not Present

2.0

Key Fob 2 Low Voltage

Key FOB Information

OK/Low

OK

Key Fob 3 Battery Signal

Key FOB Information

Volts/Not Present

2.0

Key Fob 3 Low Voltage

Key FOB Information

OK/Low

OK

Key Fob 4 Battery Signal

Key FOB Information

Volts/Not Present

2.0

Key Fob 4 Low Voltage

Key FOB Information

OK/Low

OK

Last Key Fob Used

Key FOB Information

Fob #

Fob 1

No. of Fobs Programmed

Key FOB Information

0,1,2,3,4

2

Ext. Rear Compartment Lid Release Sw.

Doors & Hatch

Active/Inactive

Inactive