Assist Step Control Module Scan Tool Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Assist Step Control Module Scan Tool Data List
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Vehicle Running, All Doors Closed | |||
| ASC Disable Switch | - | Inactive | The scan tool displays Active or Inactive.This displays the state of the ASC switch. |
| ASC Learn Status | - | Passed | The scan tool displays Running,Passed, and Canceled. This parameter displays the learned status of the ASC module. |
| ASC System Status | - | Passed | The scan tool displays Unknown, Normal, Disabled, or Locked. This parameter displays the status of the ASC system. |
| Battery Voltage | - | Varies | The scan tool displays Volts. This is the current battery voltage. |
| Driver Door Ajar Sw. | - | Stop | The scan tool displays Door Closed, and Door Ajar. This is the status of the driver door ajar switch. |
| Left ASC Board Commanded | - | Varies | The scan tool displays Off, Unknown, Retract, Extend. This displays the commanded position of the left running board. |
| Left ASC Board Position | - | Varies | This diplays counts. The parameter displays the running boards position in counts 0-255 |
| Left ASC Board Learned | - | yes | The scan tool displays Yes or No. This lets you know if the ASC board has learned it's fully extended and fully retracted limits. |
| Left Rear Door Ajar Sw | - | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the left rear door ajar switch. |
| Manufacturers Enable Counter | - | Varies | This displays counts. Counts from 256-0. |
| Passenger Door Ajar Sw | - | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the passenger door ajar switch. |
| Right Rear Door Ajar Sw | - | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the right rear door ajar switch. |
| Right ASC Board Commanded | - | Varies | The scan tool displays Off, Unknown, Retract, Extend. This displays the commanded position of the right running board. |
| Right ASC Board Learned | - | Yes | The scan tool displays Yes or No. This lets you know if the ASC board has learned it's fully extended and fully retracted limits. |
| Right ASC Board Position | - | Varies | This displays counts. The parameter displays the running boards position in counts 0-255 |
Assist Step Control Module Scan Tool Output Controls
| Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
| Left ASC Motor Test | Special Functions | This test fully deploys the assist step and then retract the assist step. |
| Right ASC Motor Test | Special Functions | This test fully deploys the assist step and then retract the assist step. |