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.
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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER ACTIV, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONOEM GENERAL INFORMATIONVEHICLE DIAGNOSTIC SCAN TOOL INFORMATION (2 OF 2)SPECIFICATIONSK29F SEAT HEATING CONTROL MODULE - FRONT: SCAN TOOL INFORMATION
2025 Chevrolet Trailblazer ACTIV, FWD
K29F Seat Heating Control Module - Front: Scan Tool Information
2025 Chevrolet Trailblazer ACTIV, FWDSECTION K29F Seat Heating Control Module - Front: Scan Tool Information
Front Seat Heating Control Module Scan Tool Data Parameters
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Engine Running | ||
| Driver Seat Cushion Heating Command | Inactive | The scan tool displays Inactive or Active. This parameter displays the commanded output from the seat heating control module to the seat heater elements. |
| Driver Seat Cushion Temperature Sensor | Varies | The scan tool displays 0 - 5 V. The voltage displayed is an input to the seat heating control module from the seat cushion temperature sensor. Higher voltage readings indicate cooler seat temperatures while lower voltage readings indicate warmer seat temperatures. |
| Driver Seat Heating/Venting/Cooling Level | Off | The scan tool displays Off, High Medium, or Low. When the heated seat is active, this parameter displays the selected temperature setting. |
| Driver Seat Heating/Venting/Cooling Mode | Off | The scan tool displays Off or Back & Cushion Heat. This parameter indicates the heated seat mode of operation. |
| Passenger Seat Cushion Heating Command | Inactive | The scan tool displays Inactive or Active. This parameter displays the commanded output from the seat heating control module to the seat heater elements. |
| Passenger Seat Cushion Temperature Sensor | Varies | The scan tool displays 0 - 5 V. The voltage displayed is an input to the seat heating control module from the seat cushion temperature sensor. Higher voltage readings indicate cooler seat temperatures while lower voltage readings indicate warmer seat temperatures. |
| Passenger Seat Heating/Venting/Cooling Level | Off | The scan tool displays Off, High Medium, or Low. When the heated seat is active, this parameter displays the selected temperature setting. |
| Passenger Seat Heating/Venting/Cooling Mode | Off | The scan tool displays Off or Back & Cushion Heat. This parameter indicates the heated seat mode of operation. |
Front Seat Heating Control Module Scan Tool Output Controls
| Control Functions | Description |
|---|---|
| Operating Conditions: Engine Running | |
| Driver Seat Cushion Heating | This output control is used to command the driver seat heater elements On. |
| Passenger Seat Cushion Heating | This output control is used to command the passenger seat heater elements On. |
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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.