GM Service Manual Online
For 1990-2009 cars only
Battery 1: The scan tool displays 0.0-18.0 volts. The state of the battery voltage feed for logic supplied to the door module selected.

Battery 2: The scan tool displays 0.0-18.0 volts. The state of the battery voltage feed for loads supplied to the door module selected.

Calibration ID: The scan tool displays the calibration or program revision level used in the PROM of the door module selected.

Door Ajar: The scan tool displays Closed/Ajar. The door ajar indicator switch input to the door module selected, where an open door is displayed as Ajar.

Door Key Unlock: The scan tool displays Active/Inactive. The door key cylinder input to the door module selected, where the key cylinder transition to the Unlock position is displayed as Active.

Door Lock Motor: The scan tool displays Active/Inactive. The door lock motor output from the door module selected, where the motor transition to the Lock position is displayed as Active.

Door Lock Switch: The scan tool displays Active/Inactive. The door lock switch input to the door module selected, where the switch transition to the Lock position is displayed as Active.

Door Switch Pad Illum: The scan tool displays 0-100%. The door switch illumination input to the door module selected, where the dimming switch rotated to bright is displayed as a higher percentage.

Door Unlock Motor: The scan tool displays Active/Inactive. The door unlock motor output from the door module selected, where the motor transition to the Unlock position is displayed as Active.

Door Unlock Switch: The scan tool displays Active/Inactive. The door lock switch input to the door module selected, where the switch transition to the Unlock position is displayed as Active.

Driver Door Ajar Sw.: The scan tool displays Open/Closed. The driver door ajar switch input to the BCM, where the door transition to the open position is displayed as Open.

Driver Window Down Switch: The scan tool displays Active/Inactive. The driver door switch window input to the DDM, where the switch transition to the Down position is displayed as Active.

Driver Window Up Switch: The scan tool displays Active/Inactive. The driver door switch window input to the DDM, where the switch transition to the Up position is displayed as Active.

Drv Mirror Select LED: The scan tool displays Active/Inactive. The driver door switch mirror select input to the DDM, where the illumination of the LH mirror LED is displayed as Active.

Drv Mirror Select Sw: The scan tool displays Active/Inactive. The driver door switch mirror select input to the DDM, where the switch transition to the LH mirror position is displayed as Active.

Ignition Voltage: The scan tool displays 0-16.0 volts. The state of the ignition voltage supplied to the door module selected.

Memory 1 Indicator: The scan tool displays Active/Inactive. The driver door switch memory 1 indicator output from the DDM, where the illumination of the Mem 1 indicator is displayed as Active.

Memory 1 Select Switch: The scan tool displays Active/Inactive. The driver door switch memory 1 select input to the DDM, where the switch transition to the Mem 1 position is displayed as Active.

Memory 2 Indicator: The scan tool displays Active/Inactive. The driver door switch memory 2 indicator output from the DDM, where the illumination of the Mem 2 indicator is displayed as Active.

Memory 2 Select Switch: The scan tool displays Active/Inactive. The driver door switch memory 2 select input to the DDM, where the switch transition to the Mem 2 position is displayed as Active.

Mirror Down Motor: The scan tool displays Active/Inactive. The vertical mirror motor output from the door module selected, where the motor transition in the Down direction is displayed as Active.

Mirror Down Switch: The scan tool displays Active/Inactive. The driver door switch mirror position input to the DDM, where the switch transition to the Down position is displayed as Active.

Mirror Heater: The scan tool displays Active/Inactive. The mirror heating element output from the door module selected, where the heating element being activated is displayed as Active.

Mirror Horizontal Pos: The scan tool displays 0-5.0 volts. The mirror horizontal position sensor feedback voltage to the door module selected.

Mirror Left Motor: The scan tool displays Active/Inactive. The horizontal mirror motor output from the door module selected, where the motor transition in the Left direction is displayed as Active.

Mirror Left Switch: The scan tool displays Active/Inactive. The driver door switch mirror position input to the DDM, where the switch transition to the Left position is displayed as Active.

Mirror Motor Load: The scan tool displays 0-0.48 amps. The amperage drawn by the mirror motor when operated.

Mirror Right Motor: The scan tool displays Active/Inactive. The horizontal mirror motor output from the door module selected, where the motor transition in the Right direction is displayed as Active

Mirror Right Switch: The scan tool displays Active/Inactive. The driver door switch mirror position input to the DDM, where the switch transition to the Right position is displayed as Active.

Mirror Up Motor: The scan tool displays Active/Inactive. The vertical mirror motor output from the door module selected, where the motor transition in the Up direction is displayed as Active.

Mirror Up Switch: The scan tool displays Active/Inactive. The driver door switch mirror position input to the DDM, where the switch transition to the Up position is displayed as Active.

Mirror Vertical Pos: The scan tool displays 0-5.0 volts. The mirror vertical position sensor feedback voltage to the door module selected.

Passenger Door Ajar Sw.: The scan tool displays Open/Closed. The passenger door ajar switch input to the BCM, where the door transition to the open position is displayed as Open.

Position Sensor Ref: The scan tool displays 0-5.0 volts. The voltage supplied to the mirror horizontal and vertical position sensors.

Psgr Mirror Select Led: The scan tool displays Active/Inactive. The driver door switch mirror select input to the DDM, where the illumination of the RH mirror LED is displayed as Active.

Psgr. Mirror Select Switch: The scan tool displays Active/Inactive. The driver door switch mirror select input to the DDM, where the switch transition to the RH mirror position is displayed as Active.

Psgr. Window Down Switch: The scan tool displays Active/Inactive. The passenger door switch window input to the PDM, where the switch transition to the Down position is displayed as Active.

Psgr. Window Up Switch: The scan tool displays Active/Inactive. The passenger door switch window input to the PDM, where the switch transition to the Up position is displayed as Active.

Rear Defog Relay: The scan tool displays Active/Inactive. The climate control rear defog relay input to the BCM, where the relay transition to energized is displayed as Active.

Software Release: The scan tool displays the software release number for service identification of the door module selected.

Software Version: The scan tool displays the software version number for service identification of the door module selected.

Window Motor Load: The scan tool displays 0-52.7 amps. The amperage drawn by the window motor when operated.