K39 Liftgate Control Module: Scan Tool Information
WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Liftgate Module Scan Tool Data Parameters
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Liftgate Supply Voltage 1 | 11.5 - 13.0 V | The scan tool displays the battery system 1 voltage input to the liftgate module. |
| Liftgate Supply Voltage 2 | 11.5 - 13.0 V | The scan tool displays the battery system 2 voltage input to the liftgate module. |
| Liftgate Secondary Obstacle Detection | 3 - 3.5 V | The scan tool displays the actual voltage on the liftgate object sensors circuit as measured by the liftgate control module. |
| Liftgate Latch Pawl Switch | Closed/Open | The scan tool displays Closed or Open. This is the state of the latch pawl switch depending upon if the liftgate is in the open position or closed position |
| Liftgate Latch Ratchet Switch | Closed/Open | The scan tool displays Closed or Open. This is the state of the latch ratchet switch depending upon if the liftgate is in the open position or closed position. |
| Liftgate Latch Sector Switch | Inactive | The scan tool displays Inactive and will briefly display Activate as the liftgate latch releases or cinches. |
| Liftgate Open/Closed Position Learned | Yes | The scan tool displays Yes or No. This is the state of the liftgate module open/close position programming. |
| Liftgate Front Control Switch | Active/Inactive | The scan tool displays Active or Inactive as the interior liftgate control switch is pressed and released. |
| Liftgate Handle Switch | Active/Inactive | The scan tool displays Active or Inactive as the liftgate handle switch is pressed and released |
| Liftgate Rear Close Switch | Active/Inactive | The scan tool displays Active or Inactive as the liftgate close switch is pressed and released. |
| Liftgate Mode Switch | Varies | The scan tool displays Off, 3/4, or Maximum which is the operation mode of the liftgate and varies when the rotary switch of the interior liftgate control switch is selected to the Off, 3/4 or Max position |
| Liftgate Mode Switch | Varies | The scan tool displays 123, 337, or 238 counts. when the rotary switch of the interior liftgate control switch is selected to the Off, 3/4 or Max position. |
| Liftgate Object Detection Sensor Supply | Active | This is the state of the liftgate object detection sensor supply |
| Liftgate Angle Sensor Supply | Inactive | This is the state of the liftgate angle sensor supply |
| Liftgate Latch Motor Cinch Command | Inactive | This is the state of the liftgate latch motor cinch command |
| Liftgate Open/Close | Inactive | Changes from Inactive to Closed to Inactive as the liftgate control module commands the liftgate latch when liftgate is pushed closed |
| Liftgate Latch Centering Commanded | Inactive | Changes from Inactive to Closed to Inactive as the liftgate control module commands the liftgate latch when liftgate is pushed closed |
Liftgate Module Scan Tool Command Functions
| Scan Tool Output Control | Description |
|---|---|
| Open/Close | This will command the liftgate to open and close. |
Liftgate Module Scan Tool Configuration/Reset Functions
| Scan Tool Output Control | Description |
|---|---|
| Liftgate Maximum Open Learn Position | This will command the liftgate to open and close and to relearn the liftgate travel limits. |