GM Service Manual Online
For 1990-2009 cars only

Driver Seat Module (DSM)

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Power Seat Parameters: Ignition OFF

Heated Seat Parameters: Engine Running

Battery Voltage

Input/Output

Volts

Varies

Ign. Since Current DTC

Input/Output

Cycles

Varies

Driver Heated Seat Sw.

Input/Output

Off/On

Off

Pass. Heated Seat Sw.

Input/Output

Off/On

Off

Horizontal Position Switch

Input/Output

Forward/Back/Inactive

Inactive

Horizontal Motor

Input/Output

Forward/Back/Inactive

Inactive

Rear Vertical Position Switch

Input/Output

Up/Down/Inactive

Inactive

Rear Vertical Motor

Input/Output

Up/Down/Inactive

Inactive

Front Vertical Position Switch

Input/Output

Up/Down/Inactive

Inactive

Front Vertical Motor

Input/Output

Up/Down/Inactive

Inactive

Horizontal Lumbar Motor

Input/Output

Forward/Rearward//Idle

Idle

Lumbar Switches

Input/Output

Forward/Back/Inactive

Inactive

Drvr. Seat Heat Sensor

Sensor Data

0-5 Volts

Varies

Psgr. Seat Heat Sensor

Sensor Data

0-5 Volts

Varies

Seat Horizontal Position

Sensor Data

0-5 Volts

Varies

Front Vertical Position

Sensor Data

0-5 Volts

Varies

Rear Vertical Position

Sensor Data

0-5 Volts

Varies

Last Memory Recall

Memory Data

Memory 1 or 2

Memory 1 or 2

Last Memory Set

Memory Data

Invalid/Memory 1 or 2

Memory 1 or 2

Mem 1 Horizontal Value

Memory Data

0-5 Volts

Varies

Mem 2 Horizontal Value

Memory Data

0-5 Volts

Varies

Mem 1 Rear Vertical Value

Memory Data

0-5 Volts

Varies

Mem 2 Rear Vertical Value

Memory Data

0-5 Volts

Varies

Mem 1 Front Vertical Value

Memory Data

0-5 Volts

Varies

Mem 2 Front Vertical Value

Memory Data

0-5 Volts

Varies

Julian Date of Build

Module Information 1

Numeric

Varies

8 Digit GM Part Number

Module Information 1

Numeric

Varies

Year Module Built

Module Information 1

Numeric

Varies

Manufacture Enable Counter

Module Information 2

0-255

0

Software Revision Number

Module Information 2

Two Letters

Varies

Software Part Number

Module Information 2

Numeric

Varies