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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - K20 TO K36 (X1)COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X1 (LLU)
2013 Buick Regal Turbo Premium, Standard Trans
K20 Engine Control Module X1 (LLU)
2013 Buick Regal Turbo Premium, Standard TransSECTION K20 Engine Control Module X1 (LLU)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | Not Available | J-35616-14 (GN) | J-38125-557 |
| II | 1928492555 | - | - |
| III | 1928492556 | - | - |
K20 Engine Control Module X1 (LLU)
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.75 | L-GN/BK | 1423 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (2) | I | - |
| 2 | 0.75 | BN | 1746 | Fuel Injector Control (3) | I | - |
| 3 | 0.75 | GN/L-BU | 428 | EVAP Canister Purge Solenoid Control | I | - |
| 4 | 0.75 | YE/BU | 1745 | Fuel Injector Control (2) | I | - |
| 5 | 0.75 | L-GN | 3060 | Overrun Air Valve Solenoid | I | - |
| 6-8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | BN/RD | 5639 | Turbo Boost Pressure Sensor 5 Volt Reference | II | - |
| 10 | 0.5 | BN/YE | 416 | Throttle Position Sensor 5 Volt Reference | II | - |
| 11 | 0.5 | GY/BK | 5300 | Camshaft Position Intake Sensor Supply Voltage (1) | II | - |
| 12 | 0.5 | YE/VT | 5275 | Camshaft Position Intake Sensor (1) | II | - |
| 13 | 0.5 | BK/YE | 2752 | Throttle Position Sensor Low Reference | II | - |
| 14 | 0.75 | BK/BU | 2760 | Intake Air Temperature Sensor Low Reference | III | - |
| 15 | - | - | - | Not Occupied | - | - |
| 16 | 0.75 | GY/WH | 3113 | Heated Oxygen Sensor Heater Low Control Bank 1 Sensor (1) | I | - |
| 17 | 0.75 | BN/VT | 1744 | Fuel Injector Control (1) | I | - |
| 18 | 0.75 | BN/GY | 3058 | Waste Gate Solenoid Control | I | - |
| 19 | 0.75 | BN/WH | 844 | Fuel Injector Control (4) | I | - |
| 20 | - | - | - | Not Occupied | - | - |
| 21 | 0.5 | GN | 1533 | Turbo Boost Pressure Sensor Signal | II | - |
| 22 | 0.5 | BN/BU | 486 | Throttle Position Sensor Signal (2) | II | - |
| 23 | - | - | - | NotUsed | - | - |
| 24 | 0.5 | GY | 5641 | Turbo Boost Pressure Sensor Temperature Signal | II | - |
| 25-26 | - | - | - | NotUsed | - | - |
| 27 | 0.5 | BN/BK | 1174 | Oil Level Switch Signal | II | - |
| 28 | 0.5 | BK/BN | 5301 | Camshaft Position Intake Sensor Low Reference (1) | II | - |
| 29 | 0.5 | BK/BU | 2761 | Coolant Temperature Sensor Low Reference | II | - |
| 30 | - | - | - | NotUsed | - | - |
| 31 | 0.75 | BU/VT | 2121 | Ignition Control (1) | I | - |
| 32-33 | - | - | - | NotUsed | - | - |
| 34 | 0.75 | BN/GY | 472 | Intake Air Temperature Sensor Signal | I | - |
| 35 | - | - | - | NotUsed | - | - |
| 36 | 0.5 | BK/YE | 1716 | Low Reference | II | - |
| 37 | 0.5 | GN/RD | 6272 | Low Reference | II | - |
| 38 | 0.5 | BK/BU | 6271 | Crankshaft Sensor Signal | II | - |
| 39 | 0.5 | VT/GY | 6270 | Crankshaft Position Sensor Control | II | - |
| 40-41 | - | - | - | NotUsed | - | - |
| 42 | 0.5 | BN/GN | 485 | Low Reference | II | - |
| 43 | 0.5 | GN/VT | 2032 | Coolant Temperature Sensor Signal | II | - |
| 44 | 0.5 | BK/GN | 5638 | Turbo Boost Pressure Sensor Low Reference | II | - |
| 45 | - | - | - | Not Occupied | - | - |
| 46 | 0.75 | BU/WH | 2123 | Ignition Control (3) | I | - |
| 47 | 0.75 | L-GN/BN | 2124 | Ignition Control (4) | I | - |
| 48 | 0.75 | YE/BU | 2122 | Ignition Control (2) | I | - |
| 49 | 0.75 | WH/BU | 560 | Throttle Relaxer Motor Control | I | - |
| 50 | 0.75 | BK/WH | 561 | Throttle Relaxer Motor Low Reference | I | - |
| 51 | 0.5 | VT/GY | 496 | Knock Sensor Signal (1) | II | - |
| 52 | 0.5 | BN/GY | 1671 | Heated Oxygen Sensor Low Signal Bank 2 Sensor (2) | II | - |
| 53 | 0.5 | L-BU | 1670 | Heated Oxygen Sensor High Signal Bank 2 Sensor (2) | II | - |
| 54 | 0.5 | BK/GY | 1664 | Heated Oxygen Sensor Low Signal Bank 1 Sensor (1) | II | - |
| 55 | 0.5 | GN/BK | 1665 | Heated Oxygen Sensor High Signal Bank 1 Sensor (1) | II | - |
| 56 | - | - | - | Not Occupied | - | - |
| 57 | 0.75 | YE/GN | 231 | Oil Pressure Switch Signal | III | - |
| 58 | - | - | - | Not Occupied | - | - |
| 59 | 0.75 | GN/WH | 492 | Mass Air Flow Sensor Signal | III | - |
| 60 | - | - | - | Not Occupied | - | - |
RENDER: 1.0x
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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.