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 X3 (LHU)
2013 Buick Regal Turbo Premium, Standard Trans
K20 Engine Control Module X3 (LHU)
2013 Buick Regal Turbo Premium, Standard TransSECTION K20 Engine Control Module X3 (LHU)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | Pending | J-35616-64B (L-BU) | J-38125-213 | 33467-0005 | 23 | J | J |
| II | Pending | J-35616-64B (L-BU) | J-38125-213 | 33467-0005 | 23 | K | K |
| III | 13576392 | J-35616-35 (VT) | J-38125-11A | 7116-4152-02 | 9 | A | 5 |
K20 Engine Control Module X3 (LHU)
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1-7 | - | - | - | Not Occupied | - | - |
| 8 | 0.5 | BU | 410 | Engine Coolant Temperature Sensor Signal | I | - |
| 9 | 0.5 | YE/BU | 231 | Oil Pressure Switch Signal | I | - |
| 10 | 0.5 | VT/BU | 6270 | 5-Volt Reference 2 | I | - |
| 11-15 | - | - | - | Not Occupied | - | - |
| 16 | 0.5 | YE | 7301 | High Pressure Fuel Pump Actuator High Control | I | - |
| 17-23 | - | - | - | Not Occupied | - | - |
| 24 | 0.5 | BK/BN | 2761 | Low Reference | I | - |
| 25 | 0.5 | BK/VT | 6272 | Low Reference | I | - |
| 26 | 0.5 | GN | 6271 | Crankshaft Sensor Signal (1) | I | - |
| 27 | 0.5 | BU/WH | 2122 | Ignition Control (2) | I | - |
| 28 | 0.5 | YE/BU | 2124 | Ignition Control (4) | I | - |
| 29 | 0.5 | GN/BU | 2123 | Ignition Control (3) | I | - |
| 30 | 0.5 | BU/VT | 2121 | Ignition Control (1) | I | - |
| 31 | 0.5 | BK/BU | 2129 | Low Reference | I | - |
| 32 | 0.5 | VT/BK | 7300 | High Pressure Fuel Pump Actuator Low Control | I | - |
| 33 | 0.5 | YE/VT | 5275 | Camshaft Position Intake Sensor (1) | I | - |
| 34 | 0.5 | GY/BU | 5300 | 5-Volt Reference 1 | I | - |
| 35 | 0.5 | VT/BK | 5273 | Camshaft Position Exhaust Sensor (1) | I | - |
| 36-38 | - | - | - | Not Occupied | - | - |
| 39 | 0.5 | VT/BN | 5284 | Camshaft Phaser Intake Solenoid (1) | I | - |
| 40 | 0.5 | GN | 5282 | Camshaft Phaser Exhaust Solenoid (1) | I | - |
| 41-45 | - | - | - | Not Occupied | - | - |
| 46 | 0.75 | BU | 4802 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 2 | II | - |
| 47 | - | - | - | Not Occupied | - | - |
| 48 | 0.75 | GN | 4803 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 3 | II | - |
| 49 | - | - | - | Not Occupied | - | - |
| 50 | 0.75 | GY/BU | 4804 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 4 | II | - |
| 51 | - | - | - | Not Occupied | - | - |
| 52 | 0.75 | BN | 4801 | Direct Fuel Injector (DFI) High Voltage Control Cylinder 1 | II | - |
| 53 | 0.5 | BK/GN | 5301 | Low Reference | I | - |
| 54 | 0.5 | GY/YE | 5297 | 5-Volt Reference 1 | I | - |
| 55 | 0.5 | BK/GY | 5296 | Low Reference | I | - |
| 56-58 | - | - | - | Not Occupied | - | - |
| 59 | 0.5 | BK/BN | 6753 | Low Reference | I | - |
| 60 | 0.5 | BK/VT | 6754 | Low Reference | I | - |
| 61-65 | - | - | - | Not Occupied | - | - |
| 66 | 0.75 | BU/GY | 4902 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 2 | II | - |
| 67 | - | - | - | Not Occupied | - | - |
| 68 | 0.75 | GN/GY | 4903 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 3 | II | - |
| 69 | - | - | - | Not Occupied | - | - |
| 70 | 0.75 | BU/WH | 4904 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 4 | II | - |
| 71 | - | - | - | Not Occupied | - | - |
| 72 | 0.75 | BN/WH | 4901 | Direct Fuel Injector (DFI) High Voltage Supply Cylinder 1 | II | - |
| 73 | 2.5 | BK/WH | 451 | Ground | III | - |
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.