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 (4 OF 7)COMPONENT CONNECTOR END VIEWSK20 ENGINE CONTROL MODULE X1 (LFW OR LFX)
2013 Cadillac CTS V, 2D Coupe, Automatic Trans
K20 Engine Control Module X1 (LFW or LFX)
2013 Cadillac CTS V, 2D Coupe, Automatic TransSECTION K20 Engine Control Module X1 (LFW or LFX)
Connector Part Information
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Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13575575 | J-35616-64B (L-BU) | J-38125-213 | 33467-0005 | 23 | J | J |
| II | SEALED: 13576392 UNSEALED: 13575797 | J-35616-35 (VT) | J-38125-11A | 7116-4152-02 | 9 | 2 | 5 |
K20 Engine Control Module X1 (LFW or LFX)
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1-3 | - | - | - | Not Occupied | - | - |
| 4 | 0.5 | YE/WH | 3200 | Air Inlet Absolute Pressure Sensor | I | - |
| 5 | 0.5 | GY/WH | 3201 | 5-Volt Reference 1 | I | - |
| 6 | 0.5 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal | I | - |
| 7-8 | - | - | - | Not Occupied | - | - |
| 9 | 0.5 | D-GN | 890 | Fuel Tank Pressure Sensor Signal | I | - |
| 10 | 0.5 | GY | 2709 | 5-Volt Reference 1 | I | - |
| 11-13 | - | - | - | Not Occupied | - | - |
| 14 | 0.5 | WH/BK | 1164 | 5-Volt Reference 4 | I | - |
| 15 | 0.5 | D-BU | 1161 | APP Sensor 1 Signal | I | - |
| 16-19 | - | - | - | Not Occupied | - | - |
| 20 | 0.5 | TN/WH | 3202 | Low Reference | I | - |
| 21 | 0.5 | GY | 2700 | 5-Volt Reference 1 | I | - |
| 22 | 0.5 | TN | 5514 | Low Reference | I | - |
| 23-24 | - | - | - | Not Occupied | - | - |
| 25 | 0.5 | D-BU | 1936 | Primary Fuel Level Sensor Signal | I | - |
| 26 | 0.5 | TN | 2759 | Low Reference | I | - |
| 27 | 0.5 | L-BU | 1937 | Secondary Fuel Level Sensor Signal | I | - |
| 28-29 | - | - | - | Not Occupied | - | - |
| 30 | 0.5 | BN | 1271 | Low Reference | I | - |
| 31 | - | - | - | Not Occupied | - | - |
| 32 | 0.5 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control | I | - |
| 33 | 0.5 | TN | 1274 | 5-Volt Reference 3 | I | - |
| 34 | 0.5 | L-BU | 1162 | APP Sensor 2 Signal | I | - |
| 35-38 | - | - | - | Not Occupied | - | - |
| 39 | 0.5 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus+ | I | - |
| 40 | 0.5 | TN | 2501 | High Speed GMLAN Serial Data Bus- | I | - |
| 41 | - | - | - | Not Occupied | - | - |
| 42 | 0.5 | D-BU | 473 | High Speed Cooling Fan Relay Control | I | - |
| 43 | - | - | - | Not Occupied | - | - |
| 44 | 0.5 | D-GN/WH | 465 | Fuel Pump Relay Control - Primary | I | - |
| 45 | - | - | - | Not Occupied | - | - |
| 46 | 0.5 | BN/WH | 419 | MIL Control | I | - |
| 47 | 0.5 | D-BU/WH | 7361 | 5-Volt Reference 2 - Manual Transmission Clutch Position Sensor | I | MV7 |
| 48 | 0.5 | TN | 6338 | Manual Transmission Clutch Position Sensor Signal Position | I | MV7 |
| 49-50 | - | - | - | Not Occupied | - | - |
| 51 | 0.5 | PK | 339 | Ignition 1 Voltage | I | - |
| 52 | 0.5 | RD/WH | 340 | Battery Positive Voltage | I | - |
| 53 | 0.5 | PU | 1272 | Low Reference | I | - |
| 54-56 | - | - | - | Not Occupied | - | - |
| 57 | 0.5 | WH | 17 | Stop Lamp Switch Signal | I | MYA |
| 58 | - | - | - | Not Occupied | - | - |
| 59 | 0.5 | D-GN | 335 | Low Speed Cooling Fan Relay Control | I | - |
| 60-61 | - | - | - | Not Occupied | - | - |
| 62 | 0.5 | PK/BK | 5291 | Ignition 1 Voltage | I | - |
| 63 | 0.5 | YE | 447 | Starter Relay Coil Control | I | - |
| 64-65 | - | - | - | Not Occupied | - | - |
| 66 | 0.75 | WH | 1310 | EVAP Canister Vent Solenoid Control | I | - |
| 67 | 0.5 | PK/BK | 5292 | Ignition 1 Voltage | I | - |
| 68 | 0.5 | OG/GN | 7360 | Manual Transmission Clutch Position Sensor Return | I | MV7 |
| 69 | - | - | - | Not Occupied | - | - |
| 70 | 0.5 | D-BU | 5985 | Accessory Wakeup Serial Data | I | - |
| 71 | - | - | - | Not Occupied | - | - |
| 72 | 0.5 | BN | 5069 | PWR/TRN Relay Control | I | - |
| 73 | 2 | PK/BK | 5290 | PWR/TRN Relay Voltage | II | - |
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.