K4 Assist Step Control Module: Scan Tool Information
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 GMC Yukon XL, 2020 GMC Yukon, 2020 Chevrolet Tahoe, 2020 Chevrolet Suburban, and 2020 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Data Parameters
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Battery Voltage | Varies | Current voltage of battery. |
| Assist Step System Status | Normal | Scan tool displays Unknown, Enabled, Disabled, or Extended. |
| Driver Door Ajar Switch | Door Closed | Scan tool displays Door Closed or Door Open. |
| Passenger Door Ajar Switch | Door Closed | Scan tool displays Door Closed or Door Open. |
| Left Rear Door Ajar Switch | Door Closed | Scan tool displays Door Closed or Door Open. |
| Right Rear Door Ajar Switch | Door Closed | Scan tool displays Door Closed or Door Open. |
| Left Assist Step Learn Status | Yes | Scan tool displays Learned if the left step learn has been completed. |
| Left Assist Step Position | Count Value | Scan tool displays the current left step position count. |
| Right Assist Step Learn Status | Yes | Scan tool displays Learned if the right step learn has been completed. |
| Right Assist Step Position | Count Value | Scan tool displays the current right step position count. |
| Right Assist Step Command | Retract Completed | Scan tool displays Unknown, Extend Completed, Retract Completed, Extending, Retracting, Error, Object Detected, or Timeout. |
| Left Assist Step Command | Retract Completed | Scan tool displays Unknown, Extend Completed, Retract Completed, Extending, Retracting, Error, Object Detected, or Timeout. |
| Assist Step Disable Switch | Inactive | Displays Active if switch is pressed. |
Scan Tool Output Controls
| Output Control | Description |
|---|---|
| Left Assist Step Motor | Allows scan tool control of left assist step. |
| Right Assist Step Motor | Allows scan tool control of right assist step. |