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.
K33 HVAC Control Module X1
2020 GMC Acadia SLSECTION K33 HVAC Control Module X1
WARNING: This page is about a different car, the 2023 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | 13584547 | J-35616-64B (L-BU) | J-38125-215A |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 - 3 | - | - | - | Not Occupied | - | - |
| 4 | 0.35 | BU/WH | 734 | Inside Air Temperature Sensor Signal | I | |
| 5 - 6 | - | - | - | Not Occupied | - | - |
| 7 | 0.35 | BK/BU | 7566 | Windshield Temperature and Inside Moisture Sensor Low Reference | I | |
| 8 - 13 | - | - | - | Not Occupied | - | - |
| 14 | 0.35 | YE/VT | 1783 | Ambient Light Sensor Signal | I | |
| 15 - 17 | - | - | - | Not Occupied | - | - |
| 18 | 0.35 | BN | 404 | Upper Duct Air Temperature Sensor Signal | I | |
| 19 | 0.35 | BN/BK | 405 | Lower Duct Air Temperature Sensor Signal | I | |
| 20 | - | - | - | Not Occupied | - | - |
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.