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.
K68 Trailer Lighting Control Module: Scan Tool Information
2025 Chevrolet Tahoe PPV, 4WDSECTION K68 Trailer Lighting Control Module: Scan Tool Information
Body Control Module Scan Tool Data Parameters
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON, Vehicle in Park. | |||
| Battery Voltage | - | Varies | The scan tool displays the current battery voltage. |
| Brake Pedal Switch Status | - | Active/Inactive | The scan tool displays the status of the brake pedal |
| State of Charge | - | Varies | The scan tool displays percentage. This parameter displays state of charge status. |
| System Voltage | - | Varies | The scan tool displays the current system voltage. |
| Trailer Connection Status | - | Connected/Not Connected | The scan tool displays the trailer connected status. |
Body Control Module Scan Tool Output Controls
| Scan Tool Output Control | Description |
|---|---|
| Left Trailer Turn Signal/Stop Lamp Command | The Trailer Lighting Control Module activates the left trailer turn signal/stop lamp control circuit when you select Active. B+ should be applied to terminal G at the X88 Trailer Connector. |
| Right Trailer Turn Signal/Stop Lamp Command | The Trailer Lighting Control Module activates the right trailer turn signal/stop lamp control circuit when you select Active. B+ should be applied to terminal D at the X88 Trailer Connector. |
| Left Trailer Tail Lamp | The Trailer Lighting Control Module activates the trailer park lamp control circuit when you select Active. B+ should be applied to terminal F at the X88 Trailer Connector. |
| Right Trailer Tail Lamp | The Trailer Lighting Control Module activates the trailer park lamp control circuit when you select Active. B+ should be applied to terminal F at the X88 Trailer Connector. |
| Trailer Backup Lamps | The Trailer Lighting Control Module activates the trailer backup lamp control circuit when you select Active. B+ should be applied to terminal A at the X88 Trailer Connector. |
RENDER: 1.0x
NO RELATED
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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.