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.
K171 Hands-Free Liftgate Sensor Control Module X2 (TC2)
2025 Chevrolet Trailblazer ACTIV, 4WDSECTION K171 Hands-Free Liftgate Sensor Control Module X2 (TC2)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | Not required | No Tool Required | No Tool Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | - | WH / GY | 4900 | Hands-Free Liftgate Sensor Signal 2 | I | - |
| 2 | - | BK / YE | 4899 | Hands Free Closure Release Sensor Low Reference 2 | I | - |
| 3 | - | BK / BU | 4897 | Hands Free Closure Release Sensor Low Reference 1 | I | - |
| 4 | - | GY / VT | 4898 | Hands-Free Liftgate Sensor Signal 1 | I | - |
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.