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.
K20 Engine Control Module X2 (LGX)
2018 Buick Regal BaseSECTION K20 Engine Control Module X2 (LGX)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 19355728 | J-35616-35 (VT) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| II | 19355736 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| III | 19355737 | J-35616-64B (LT BU) | J-38125-215A | Not Available | Not Available | Not Available | Not Available |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | GY/WH | 3122 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 2 | II | LGX |
| 2 | 0.5 | WH/BN | 3223 | Heated Oxygen Sensor Heater Low Control Bank 2 Sensor 2 | II | LGX |
| 3 - 6 | - | - | - | Not Occupied | - | - |
| 7 | 0.35 | GN/VT | 4621 | Local Interconnect Network Serial Data Bus 21 | III | LGX |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | BN/GN | 1174 | Oil Level Switch Signal | II | LGX |
| 10 | - | - | - | Not Occupied | - | - |
| 11 | 0.5 | YE/BN | 331 | Oil Pressure Sensor Signal | II | LGX |
| 12 | 0.5 | BK/YE | 548 | Engine Control Sensors Low Reference (1) | II | LGX |
| 13 - 16 | - | - | - | Not Occupied | - | - |
| 17 | 0.5 | GY/WH | 3113 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor 1 | II | LGX |
| 18 | 0.5 | GN/YE | 3212 | Heated Oxygen Sensor Heater Low Control Bank 2 Sensor 1 | II | LGX |
| 19 - 26 | - | - | - | Not Occupied | - | - |
| 27 | 0.5 | WH/RD | 2705 | Oil Pressure Sensor 5V Reference | II | LGX |
| 28 | 0.5 | VT/BU | 5294 | Powertrain Main Relay Fused Supply 5 | II | LGX |
| 29 - 34 | - | - | - | Not Occupied | - | - |
| 35 | 0.5 | WH/BK | 3111 | Heated Oxygen Sensor Low Signal Bank 1 Sensor 1 | II | LGX |
| 36 | 0.5 | YE/WH | 3211 | Heated Oxygen Sensor Low Signal Bank 2 Sensor 1 | II | LGX |
| 37 | 0.5 | WH/YE | 3121 | Heated Oxygen Sensor Low Signal Bank 1 Sensor 2 | II | LGX |
| 38 | 0.5 | YE/BU | 3221 | Heated Oxygen Sensor Low Signal Bank 2 Sensor 2 | II | LGX |
| 39 | 0.5 | BK/YE | 1716 | Knock Sensor Low Reference 1 | II | LGX |
| 40 | 0.5 | BK/GY | 2303 | Knock Sensor Low Reference 2 | II | LGX |
| 41 | - | - | - | Not Occupied | - | - |
| 42 | 0.35 | YE/WH | 3200 | Throttle Inlet Absolute Pressure Sensor Signal | III | LGX |
| 43 | 0.35 | WH/RD | 3201 | Throttle Inlet Absolute Pressure Sensor 5V Reference | III | LGX |
| 44 - 46 | - | - | - | Not Occupied | - | - |
| 47 | 0.5 | GY/RD | 2704 | Manifold Absolute Pressure Sensor 5V Reference | II | LGX |
| 48 | 0.5 | BK/GN | 469 | Manifold Absolute Pressure Sensor Low Reference | II | LGX |
| 49 - 50 | - | - | - | Not Occupied | - | - |
| 51 | 0.5 | BK/GY | 626 | Engine Control Sensors Low Reference (3) | II | LGX |
| 52 | 0.5 | BN/WH | 582 | Throttle Actuator Control Close | II | LGX |
| 53 - 54 | - | - | - | Not Occupied | - | - |
| 55 | 0.5 | VT/GY | 3110 | Heated Oxygen Sensor High Signal Bank 1 Sensor 1 | II | LGX |
| 56 | 0.5 | VT/WH | 3210 | Heated Oxygen Sensor High Signal Bank 2 Sensor 1 | II | LGX |
| 57 | 0.5 | VT/BU | 3120 | Heated Oxygen Sensor High Signal Bank 1 Sensor 2 | II | LGX |
| 58 | 0.5 | VT/GN | 3220 | Heated Oxygen Sensor High Signal Bank 2 Sensor 2 | II | LGX |
| 59 | 0.5 | VT/GY | 496 | Knock Sensor Signal 1 | II | LGX |
| 60 | 0.5 | WH/GY | 1876 | Knock Sensor Signal 2 | II | LGX |
| 61 - 62 | - | - | - | Not Occupied | - | - |
| 63 | 0.35 | BK/VT | 2760 | Intake Air Temperature Sensor Low Reference | III | LGX |
| 64 - 66 | - | - | - | Not Occupied | - | - |
| 67 | 0.5 | GN/WH | 432 | Manifold Absolute Pressure Sensor Signal | II | LGX |
| 68 - 69 | - | - | - | Not Occupied | - | - |
| 70 | 0.5 | WH/BU | 6289 | Induction Air Temperature Sensor Signal | II | LGX |
| 71 | - | - | - | Not Occupied | - | - |
| 72 | 0.5 | YE | 581 | Throttle Actuator Control Open | II | LGX |
| 73 | 2.5 | BK/WH | 151 | Signal Ground | I | LGX |
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.