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 MANUALSGMC2020SAVANA 3500 LS, VAN PASSENGER, 6.0L ENG VIN B, GAS/ETHANOLREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (K71-Q77G)COMPONENT CONNECTOR END VIEWSK73 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE X1
2020 GMC Savana 3500 LS, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol
K73 Telematics Communication Interface Control Module X1
2020 GMC Savana 3500 LS, Van Passenger, 6.0L Eng VIN B, Gas/EthanolSECTION K73 Telematics Communication Interface Control Module X1
Connector Part Information
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Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | 13575548 | J-35616-16 (LT GN) | J-38125-559 | Not Required | Not Required | Not Required | Not Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | D-GN/ | 5060 | Low Speed GMLAN Serial Data | I | - |
| 2 | 0.8 | BN/WH | 2517 | Keypad Red LED Control | I | - |
| 3 | 0.8 | YE/BK | 2516 | Keypad Green LED Control | I | - |
| 4 - 5 | - | - | - | Not Occupied | - | - |
| 6 | 0.8 | L-GN/BK | 2515 | Keypad Control | I | - |
| 7 | 0.8 | BK/WH | 351 | Ground 3 | I | - |
| 8 - 9 | - | - | - | Not Occupied | - | - |
| 10 | 0.5 | BU | 2500 | High Speed GMLAN Serial Data [+] 1 | I | - |
| 11 | 0.8 | D-GN/WH | 2514 | Keypad Signal | I | - |
| 12 | 0.5 | WH | 2501 | High Speed GMLAN Serial Data [-] 1 | I | - |
| 13 - 14 | - | - | - | Not Occupied | - | - |
| 15 | 0.8 | RD/WH | 3240 | Secondary Fused Battery Positive Voltage 32 | I | - |
| 16 | - | - | - | Not Occupied | - | - |
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.