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 MANUALSCHEVROLET2025EQUINOX RS, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 129 (COMPONENT CONNECTOR END VIEWS (K20 - K43))COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X2
2025 Chevrolet Equinox RS, 4WD
K20 Engine Control Module X2
2025 Chevrolet Equinox RS, 4WDSECTION K20 Engine Control Module X2
WARNING: This page is about a different car, the 2024 GMC Terrain and 2024 Chevrolet Equinox. 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 | 13587518 | J-35616-35 (VT) | J-38125-11A |
| II | 19351723 | J-35616-64B (L-BU) | J-38125-213 |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | GY / WH | 3122 | HO2S Heater Low Control Bank 1 Sensor 2 | II | - |
| 2 | 0.5 | BU | 6814 | Engine Coolant Thermostat Heater Control | II | - |
| 3 - 5 | - | - | - | Not Occupied | - | - |
| 6 | 0.5 | GN / WH | 4622 | Engine Control Module LIN Bus 2 | II | - |
| 7 | 0.5 | GN / VT | 4621 | Engine Control Module LIN Bus 1 | II | - |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | BN / WH | 6933 | HO2S Pump Current Signal | II | - |
| 10 | 0.5 | YE / GY | 6936 | HO2S Signal | II | - |
| 11 | 0.5 | GY / WH | 3113 | HO2S Heater Low Control Bank 1 Sensor 1 | II | - |
| 12 - 13 | - | - | - | Not Occupied | - | - |
| 14 | 0.5 | WH / VT | 4108 | Driver Mode Switch Signal | II | - |
| 15 | 0.5 | YE / GY | 11029 | Canister Vapor Pressure Sensor Signal | II | - |
| 16 - 18 | - | - | - | Not Occupied | - | - |
| 19 | 0.5 | GN | 6935 | HO2S Pump Current Trim Signal | II | - |
| 20 | 0.5 | BN | 6934 | HO2S Ground | II | - |
| 21 | 0.5 | GN | 3060 | Turbocharger Bypass Solenoid Valve Control Bank 1 | II | - |
| 22 | - | - | - | Not Occupied | - | - |
| 23 | 0.5 0.5 |
BU BU |
179 179 |
Engine Oil Pump Control Engine Oil Pump Control |
II II |
F48 -F48 |
| 24 | 0.5 | WH / RD | 480 | Engine Control Vehicle Sensors 5 Volt Reference 1 | II | - |
| 25 | 0.5 | WH / YE | 3121 | HO2S Low Signal Bank 1 Sensor 2 | II | - |
| 26 - 27 | - | - | - | Not Occupied | - | - |
| 28 | 0.5 | BK / GY | 2303 | Knock Sensor Low Reference 2 | II | - |
| 29 | 0.5 | BK / YE | 1716 | Knock Sensor Low Reference 1 | II | - |
| 30 | - | - | - | Not Occupied | - | - |
| 31 | 0.5 | VT / BU | 5294 | Powertrain Main Relay Fused Supply Voltage 5 | II | - |
| 32 | - | - | - | Not Occupied | - | - |
| 33 | 0.5 | GY / BK | 3865 | Auxiliary Heater Coolant Pump Relay Control | II | (MAH/MBC/MCX) |
| 34 | 0.5 | BN / WH | 582 | Throttle Actuator Close Control | II | - |
| 35 | 0.5 | BN / YE | 258 | Turbocharger Wastegate Solenoid Valve Control | II | - |
| 36 - 37 | - | - | - | Not Occupied | - | - |
| 38 | 0.5 | BU / RD | 460 | Engine Control Sensors 5 Volt Reference 1 | II | - |
| 39 | 0.5 | VT / BU | 3120 | HO2S High Signal Bank 1 Sensor 2 | II | - |
| 40 - 41 | - | - | - | Not Occupied | - | - |
| 42 | 0.5 | WH / GY | 1876 | Knock Sensor 2 Signal | II | - |
| 43 | 0.5 | VT / GY | 496 | Knock Sensor 1 Signal | II | - |
| 44 - 45 | - | - | - | Not Occupied | - | - |
| 46 | 0.5 | WH / BU | 7329 | Pre-Throttle Air Temperature Signal | II | - |
| 47 | - | - | - | Not Occupied | - | - |
| 48 | 0.5 | YE | 581 | Throttle Actuator Open Control | II | - |
| 49 | 2 | BK | 2650 | Ground | 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.