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 MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 3 (COMPONENT CONNECTOR END VIEWS - K20 X3 LGZ TO K109)COMPONENT CONNECTOR END VIEWSK33 HVAC CONTROL MODULE X2
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
K33 HVAC Control Module X2
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION K33 HVAC Control Module X2
WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Connector Part Information
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Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13575867 | J-35616-64B (LT BU) | J-38125-215A | SAIT-A03T-M064 | Yazaki 14 | P | P |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | RD/VT | 3340 | Battery Positive Voltage | I | - |
| 2 | 0.35 | GN | 5060 | Low Speed GMLAN Serial Data | I | - |
| 3 | - | - | - | Not Occupied | - | - |
| 4 | 0.35 | GN/YE | 7531 | Local Interconnect Network Serial Data Bus 9 | I | - |
| 5 - 6 | - | - | - | Not Occupied | - | - |
| 7 | 0.5 | VT | 3195 | Auxiliary Heater Control | I | - |
| 8 | 0.5 | BK | 2050 | Ground | I | - |
| 9 | 0.35 | VT/GY | 539 | Run/Crank Ignition 1 Voltage | I | - |
| 10 | 0.5 | L-BU/YE | 7574 | Electric Variable Displacement Control | I | - |
| 11 | 0.5 | L-BU/BN | 7573 | Electric Variable Displacement Supply | I | - |
| 12 - 14 | - | - | - | Not Occupied | - | - |
| 15 | 0.35 | L-BU/GY | 754 | Blower Motor Speed Control | I | - |
| 16 - 17 | - | - | - | Not Occupied | - | - |
| 18 | 0.35 | BK/YE | 1791 | Air Temperature Door Control Low Reference | I | - |
| 19 | 0.35 | BN/VT | 193 | Rear Defog Relay Control | 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.