GM Service Manual Online
For 1990-2009 cars only

The Passenger Door Module (PDM) scan tool data definitions are a brief description of each of the related parameters displayed within the scan tool data displays for the PDM.

Base Software P/N: This is the part number stored within the PDM of the base software set required to activate the PDM. This software set is often referred to as boot software.

Base Software Suffix: This suffix number is the stored indication of the revision level of the base software.

Battery 1 (Low Current): The battery 1 (low current) parameter provides the voltage level on the battery 1 input. Battery 1 is the low current input provides the power for the PDMs microprocessors and the low current outputs.

Battery 2 (High Current): The battery 2 (high current) parameter provides the voltage level on the battery 2 input. Battery 2 is the high current input provides the power for the PDMs high current outputs such as the power windows.

Calibration P/N: This is the part number stored within the PDM of the calibration set. The calibration software sets the operational ranges and option levels for each of the PDM's functions. This software set is often referred to as calibration software or calibration.

Calibration Suffix: This suffix number is the stored indication of the revision level of the calibration. This is often referred to as the CAL ID.

Memory Switch: This data parameter provides the status of the memory switch.

Mirror 5 Volt Reference: This data parameter provides a status indication of the 5-volt reference circuit for the OSRV position sensors.

Mirror Heater: This parameter indicates the operational state of the mirror heater.

Mirror Horizontal Position: This parameter provides OSRV mirror horizontal position in volts.

Mirror Motor: This parameter provides information regarding the state of operation the mirror is currently activating.

Mirror Select Switch: This parameter indicates the current mirror select switch position.

Mirror Switch Backlight: The mirror switch backlight data parameter reflects the level of backlighting, in percent for the mirror switch.

Mirror Switch Horizontal: This data parameter provides the current status of the OSRV horizontal position adjustment switch.

Mirror Switch Vertical: This data parameter provides the current status of the OSRV vertical position adjustment switch.

Mirror Vertical Position: This parameter provides OSRV mirror vertical position information in volts.

Program Software P/N: This is the part number stored indication of the revision level of the program software.

Program Software Suffix: This suffix number is the stored indication of the revision level of the program software.