GM Service Manual Online
For 1990-2009 cars only

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Operating Conditions: ignition ON, engine OFF.

Battery Voltage Signal

Data

Volts

12.6

Crank Voltage

Data

Volts

4.4

Driver Door Ajar Sw.

Inputs

Door Ajar/Door Closed

Door Closed

Ignition Accessory

Inputs

Active/Inactive

Active

Ign. Off/Run/Crank

Inputs

Active/Inactive

Active

Ignition 1 Run/Crank

Inputs

Active/Inactive

Active

Passenger Door Ajar Sw.

Inputs

Door Ajar/Door Closed

Door Closed

Accy. Relay Command

Outputs

On/Off

On

Ignition 3

Outputs

Active/Inactive

Active