GM Service Manual Online
For 1990-2009 cars only

SCM Data List

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Ignition On and Engine Off / Doors, Trunk, and Hood Closed / Transmission In Park / No Switches On

Battery Voltage

Data

Volts

12-14 Volts

Ignition Status

Data

On/Off

On

Driver Door Switch

Data

Open/Closed

Closed

Memory Key

Data

On/Off

Off

Personal Key 1

Data

On/Off

Off

Personal Key 2

Data

On/Off

Off

Personal Key 3

Data

On/Off

Off

Front Height Switch

Data

Active/Inactive

Inactive

Front Height Position

Data

0-100%

Varies with seat position

Front Height Position

Data

0-5 Volts

Varies with seat position

Front Height Motor

Data

Up/Down/Inactive

Inactive

Rear Height Switch

Data

Active/Inactive

Inactive

Rear Height Position

Data

0-100%

Varies with seat position

Rear Height Position

Data

0-5 Volts

Varies with seat position

Rear Height Motor

Data

Up/Down/Inactive

Inactive

Fore Back Switch

Data

Active/Inactive

Inactive

Fore Back Position

Data

0-100%

Varies with seat position

Fore Back Position

Data

0-5 Volts

Varies with seat position

Fore Back Motor

Data

Up/Down/Inactive

Inactive

Recliner Switch

Data

Active/Inactive

Inactive

Recliner Position

Data

0-100%

Varies with seat position

Recliner Position

Data

0-5 Volts

Varies with seat position

Recliner Motor

Data

Up/Down/Inactive

Inactive