Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
K26 Headlamp Control Module: Scan Tool Information
The headlamp control module scan tool data parameters list contains all headlamp related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Accelerator Pedal Position | - | - | The scan tool displays the position of the accelerator pedal in %. |
| Battery Voltage | - | 9.0 - 14.0 V | The scan tool displays the current battery voltage. |
| Front Levelling Position Sensor | - | - | The scan tool displays the position of the front levelling sensor in mm. |
| Front Levelling Position Sensor Signal | - | - | The scan tool displays the position of the front levelling sensor in %. |
| Headlamp Light Distribution | - | Inactive | The scan tool displays the current light distribution mode. |
| - | Country Road | ||
| - | City Street | ||
| - | Expressway | ||
| - | Bad Weather | ||
| - | High Beam | ||
| Left Headlamp Horizontal Motor | - | - | The scan tool displays the position of the left headlamp horizontal motor in °. |
| Left Headlamp Vertical Motor | - | - | The scan tool displays the position of the left headlamp vertical motor in %. |
| Low Beam Illumination Area | - | Left Hand Traffic | The scan tool displays the current traffic mode. |
| - | Right Hand Traffic | ||
| Rear Levelling Position Sensor | - | - | The scan tool displays the position of the rear levelling sensor in mm. |
| Rear Levelling Position Sensor Signal | - | - | The scan tool displays the position of the rear levelling sensor in %. |
| Right Headlamp Horizontal Motor | - | - | The scan tool displays the position of the right headlamp horizontal motor in °. |
| Right Headlamp Vertical Motor | - | - | The scan tool displays the position of the right headlamp vertical motor in %. |
| Steering Wheel Angle Sensor Signal | - | - | The scan tool displays the current position of the steering wheel angle sensor in °. |
| Vehicle Levelling Sensors Supply Voltage | - | 9.0 - 13.0 V | The scan tool displays the current levelling sensor supply voltage. |
| Vehicle Speed | - | - | The scan tool displays the vehicle speed in km/h (MPH). |
| Output Control | Description |
|---|---|
| Automatic Headlamp Leveling Sensor Learn | Commands the automatic headlamp leveling sensor learn process. |
| Headlamp Leveling Motors | Commands the headlamp leveling motors Increase or Decrease. |
| Headlamp Motor | Commands the headlamp motor Left or Right. |
| Headlamps High Intensity Discharge Power Increase | Commands the discharge power On or Off. |
| Left Cornering Lamp | Commands the cornering lamp On or Off. |
| Left Headlamp Horizontal Motor | Commands the horizontal motor Left or Right. |
| Left Headlamp Vertical Motor | Commands the vertical motor Increase or Decrease. |
| Right Cornering Lamp | Commands the cornering lamp On or Off. |
| Right Headlamp Horizontal Motor | Commands the horizontal motor Left or Right. |
| Right Headlamp Vertical Motor | Commands the vertical motor Increase or Decrease. |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.