GM Service Manual Online
For 1990-2009 cars only
Battery Voltage: The scan tool displays voltage, the current state of the vehicle battery charge.

Liftgate Open Switch: The scan tool displays Active/Inactive. Active is displayed when the liftgate open switch is being pressed and Inactive is displayed when the liftgate open switch is not being pressed.

LF Door Lock Switch: The scan tool displays Idle/Lock/Unlock/Invalid. This is the driver door lock switch input to the body control module (BCM). Switch transitions to the lock and unlock positions are displayed as Lock and Unlock. If the switch is stuck, or if the switch circuit has shorted to ground, the scan tool will display that function as active. If the switch is then activated to the opposite functions, the scan tool displays Invalid.

LF Door Open Switch: The scan tool displays Closed/Open, the driver door open switch input to the BCM, where an open door is displayed as Open.

LF Key Cylinder Lock Switch: The scan tool displays Idle/Lock/Unlock/Invalid, the driver door key cylinder switch input to the BCM, where the switch transitions to the lock and unlock positions are displayed as Lock and Unlock. If the switch is struck, or if the switch circuit has shorted to ground, the scan tool will display that function as active. If the switch is then activated to the opposite function, the scan tool displays Invalid.

LR Door Open Switch: The scan tool displays Closed/Open, the left rear door open switch input to the BCM, where an open door is displayed as Open.

RF Door Open Switch: The scan tool displays Closed/Open, the front passenger door open switch input to the BCM, where an open door is displayed as Open.

RR Door Open Switch: The scan tool displays Closed/Open, the right rear door open switch input to the BCM, where an open door is displayed as Open.

RF Key Cylinder Lock Switch: If the vehicle is equipped with this feature, the scan tool displays Idle/Lock/Unlock/Invalid, the front passenger door key cylinder switch input to the BCM, where the switch transitions to the lock and unlock positions are displayed as Lock and Unlock. If the switch is struck, or if the switch circuit has shorted to ground, the scan tool will display that function as active. If the switch is then activated to the opposite function, the scan tool displays Invalid.

RF Door Lock Switch: The scan tool displays Active/Inactive. Active is displayed when the right front door lock switch is being pressed and Inactive is displayed when the right front door lock switch is not being pressed.

RF Door Unlock Switch: The scan tool displays Active/Inactive. Active is displayed when the right front door unlock switch is being pressed and Inactive is displayed when the right front door unlock switch is not being pressed.

PSDM Configuration: The scan tool displays Right, Left, or Invalid. This indicates whether the information displayed on the scan tool concerns the Right or Left power sliding door module (PSDM). The PSDM recognizes which power sliding door it controls, right or left, according to which terminal of 2 logic power terminals receives 12 volts. The configuration is determined by the vehicle wiring harness.

PSD Detent Switch: The scan tool displays Active or Inactive. This indicates the current status of the power sliding door latch, i.e. latched or unlatched. The PSDM uses the signal from this switch to activate or deactivate the power sliding door motor and clutch.

PSD Front Control Switch: The scan tool displays Active or Inactive. This is the current status of the power sliding door switch mounted in the overhead console.

PSD Latch Solenoid Command: The scan tool displays Active or Inactive. This is the commanded or at rest state of the power sliding door latch.

PSD Motor Clutch Command: The scan tool displays Active or Inactive. This is the commanded or at rest state of the power sliding door clutch.

PSD Motor Command: The scan tool displays Idle/Open/Close. This is the commanded or at rest state of the power sliding door motor.

PSD Open/Close Position Learned: The scan tool displays Yes or No, whereas Yes indicates that the PSDM has stored the full open and full closed positions to memory. No indicates that the PSDM has not stored the positions.

PSD Position Sensor 1: The scan tool displays Counts that vary depending upon the open or closed position of the power sliding door.

PSD Position Sensor 2: The scan tool displays Counts that vary depending upon the open or closed position of the power sliding door.

PSD Rear Control Switch: The scan tool displays Active or Inactive. This is the current status of the power sliding door switch mounted to the B pillar of the vehicle.

PSD System Enable Switch: The scan tool displays On or Off. This is the current state of the power sliding door system enable switch. The enable switch is the main power switch for the power sliding doors. When the enable switch is ON, operation of the sliding doors is permitted from any associated power sliding door switch. When the enable switch is OFF, the power sliding doors may be operated only from the key FOB.

Vehicle in Park: The scan tool displays Yes or No, whereas Yes indicates that the transmission is in Park and No indicates the transmission is not in Park. The PSDM determines this status from a class 2 message and a hard-wire signal from the body control module (BCM).