GM Service Manual Online
For 1990-2009 cars only

Driver Position Module

Parameter

System State

Expected Value

Description

Operating Conditions: Ignition ON/Engine OFF

Driver Seat Front Vertical Sensor

--

Varies

The scan tool displays volts. This is the state of the driver front vertical sensor

Driver Seat Horizontal Sensor

--

Varies

The scan tool displays volts. This is the state of the driver horizontal sensor.

Driver Seat HVC Mode

--

Off

The scan tool displays Off, Back & Cushion, Back Only, Cool. This is the state of the driver seat hvac mode.

Driver Seat HVC Level

--

Varies

The scan tool displays High, Medium, Low. This is the state of the driver seat hvac level.

Driver Seat Rear Vertical Sensor

--

Varies

The scan tool displays volts. This is the state of the driver seat rear vertical sensor.

Driver Seat Recline Sensor

--

Varies

The scan tool displays volts. This is the state of the driver seat recline sensor.

Front Vertical Downward Switch

--

Inactive

The scan tool displays Inactive/Active. This is the state of the front vertical downward switch.

Front Vertical Upward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the front vertical upward switch.

Front Vertical Motor Downward

--

Inactive

The scan tool displays Inactive/Active. This is the state of the front vertical motor downward.

Front Vertical Motor Upward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the front vertical motor upward.

Horizontal Motor Forward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the horizontal motor forward.

Horizontal Motor Rearward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the horizontal motor rearward.

Horizontal Forward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the horizontal forward switch.

Horizontal Rearward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the horizontal rearward switch.

Lumbar Downward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar downward switch.

Lumbar Forward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar forward switch.

Lumbar Horizontal Sensor

--

Varies

The scan tool displays volts. This is the state of the lumbar horizontal sensor.

Lumbar Inflation Value

--

Varies

The scan tool displays volts. This is the state of the lumbar inflation.

Lumbar Motor Downward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar motor downward.

Lumbar Motor Forward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar motor forward.

Lumbar Motor Rearward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar motor rearward.

Lumbar Motor Upward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar motor upward.

Lumbar Rearward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar rearward switch.

Lumbar Upward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the lumbar upward switch.

Lumbar Vertical Position

--

Varies

The scan tool displays volts. This is the state of the lumbar vertical position.

Lumbar Vertical Sensor

--

Varies

The scan tool displays volts. This is the state of the lumbar vertical sensor.

Massage Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the massage switch.

Massage Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the massage switch.

Memory 1 Adj. Pedals Position

--

Volts

The scan tool displays volts. This is the state of the memory 1 for the adjustable pedals position.

Memory 2 Adj. Pedals Position

--

Varies

The scan tool displays volts. This is the state of the memory 2 for the adjustable pedals position.

Passenger Seat HVC Mode.

--

Off

The scan tool displays Off, Back & Cushion, Back Only, or Cool. This is the state of the passenger seat hvac mode.

Passenger Seat HVC Level

--

Varies

The scan tool displays High, Medium, and Low. This is the state of the hvac level.

Pedal Aft Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the pedal aft switch.

Pedal Forward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the pedal forward.

Pedal Forward Softstep Pos.

--

Varies

The scan tool displays Volts. This is the state of the pedal forward softstep position.

Pedal Forward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the pedal forward switch.

Pedal Position

--

Varies

The scan tool displays Volts. This is the state of the pedal position.

Pedal Rearward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the pedal rearward.

Pedal Rearward Softstop Pos.

--

Varies

The scan tool displays Volts. This is the state of the pedal rearward softstop position.

Pedal Softstop Learn Status

--

Learned

The scan tool displays Learned/Unlearned/Failed. This is the status of whether or not the pedal softstop learned it's position.

Recline Forward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the recline forward switch.

Recline Motor Forward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the recline motor forward.

Recline Motor Rearward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the recline motor rearward.

Recline Rearward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the recline rearward switch.

Rear Vertical Downward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the rear vertical downward switch.

Rear Vertical Motor Downward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the rear vertical motor downward.

Rear Vertical Motor Upward

--

Inactive

The scan tool displays Active/Inactive. This is the state of the rear vertical motor upward.

Rear Vertical Upward Switch

--

Inactive

The scan tool displays Active/Inactive. This is the state of the rear vertical

Seat Horizontal Position

--

Varies

The scan tool displays volts. This is the state of the seat horizontal position.

Seat Front Vertical Position

--

Varies

The scan tool displays volts. This is the state of the seat front vertical position.

Seat Rear Vertical Position

--

Varies

The scan tool displays volts. This is the state of the seat rear vertical position.

Seat Recline Position

--

Varies

The scan tool displays volts. This is the state of the seat recline position.