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 MANUALSCADILLAC2013CTS V, 2D COUPE, AUTOMATIC TRANSREPAIR AND DIAGNOSISELECTRICALWIRING DIAGRAMSWIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS (5 OF 7)COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X1 (LSA)
2013 Cadillac CTS V, 2D Coupe, Automatic Trans
K20 Engine Control Module X1 (LSA)
2013 Cadillac CTS V, 2D Coupe, Automatic TransSECTION K20 Engine Control Module X1 (LSA)
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 | 13575811 | J-35616-64B (L-BU) | J-38125-213 | 33467-0003 | 23 | H | H |
| II | 13575575 | J-35616-64B (L-BU) | J-38125-213 | 33467-0005 | 23 | J | J |
K20 Engine Control Module X1 (LSA)
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1-6 | - | - | - | Not Occupied | - | - |
| 7 | 0.5 | WH | 17 | Low Reference | I | - |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | TN | 2759 | Fuel Tank Pressure Sensor Low Reference | II | - |
| 10-11 | - | - | - | Not Occupied | - | - |
| 12 | 0.5 | BN/WH | 419 | Malfunction Indicator Lamp (MIL) Control | II | - |
| 13 | 0.5 | D-GN/WH | 465 | Fuel System Control Module Signal Fuel Pump Relay Control - Primary | II | - |
| 14-17 | - | - | - | Not Occupied | - | - |
| 18 | 0.5 | D-BU | 5985 | Accessory Wakeup Serial Data | II | - |
| 19 | 0.5 | PK | 339 | Ignition 1 Voltage | II | - |
| 20 | 0.5 | RD/WH | 340 | Battery Positive Voltage | II | - |
| 21-25 | - | - | - | Not Occupied | - | - |
| 26 | 0.5 | YE | 447 | Starter Relay Coil Control | II | - |
| 27-32 | - | - | - | Not Occupied | - | - |
| 33 | 0.35 | WH/BK | 1164 | 5-Volt Reference 2 | I | - |
| 34 | 0.5 | GY | 2709 | Fuel Tank Pressure Sensor 5 Volt Reference | I II |
- |
| 35 | 0.35 | TN | 1274 | 5-Volt Reference 1 | I | - |
| 36 | 0.35 | BN | 1271 | Low Reference | I | - |
| 37 | 0.35 | PU | 1272 | Low Reference | I | - |
| 38-39 | - | - | - | Not Occupied | - | - |
| 40 | 0.5 | BN | 5069 | Main Relay Control | II | - |
| 41-43 | - | - | - | Not Occupied | - | - |
| 44 | 0.5 | D-BU | 1936 | Primary Fuel Level Sensor Signal | II | - |
| 45 | 0.5 | L-BU | 1937 | Secondary Fuel Level Sensor Signal | II | - |
| 46 | 0.8 | BN | 7123 | Supercharger Air Inlet Pressure Sensor Signal | II | - |
| 47 | 0.35 | D-BU | 1161 | Accelerator Pedal Position (APP) Sensor 1 Signal | I | - |
| 48 | 0.5 | D-GN | 890 | Fuel Tank Pressure (FTP) Sensor Signal | II | - |
| 49 | 0.35 | L-BU | 1162 | Accelerator Pedal Position (APP) Sensor 2 Signal | I | - |
| 50-52 | - | - | - | Not Occupied | - | - |
| 53 | 0.5 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control | II | - |
| 54 | 0.5 | D-BU | 473 | High Speed Cooling Fan Relay Control | II | - |
| 55 | 0.8 | WH | 1310 | EVAP Canister Vent Solenoid Valve Control | II | - |
| 56 | - | - | - | 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.