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.
K56 Serial Data Gateway Module X2
2025 Chevrolet Tahoe PPV, RWDSECTION K56 Serial Data Gateway Module X2
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | 19370262 | EL-35616-58 (BK) | EL-38125-58 |
| II | Service by Cable | EL-35616-58 (BK) | EL-38125-58 |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 - 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.35 | BK / GY | 3559 | Passive Start Switch 2 Low Reference | I | - |
| 6 | - | - | - | Not Occupied | - | - |
| 7 | 0.35 | GN / VT | 5199 | Run/Crank Relay Coil Control | I | - |
| 8 | - | - | - | Not Occupied | - | - |
| 9 | 0.35 | YE / WH | 4973 | Ethernet Bus 1R [+] | II | - |
| 10 | 0.35 | YE | 4972 | Ethernet Bus 1R [-] | II | - |
| 11 - 12 | - | - | - | Not Occupied | - | - |
| 13 | 0.35 | BU / BN | 4983 | AUTOSAR CAN Bus [+] 7 Serial Data | I | - |
| 14 | 0.35 | WH | 4982 | AUTOSAR CAN Bus [-] 7 Serial Data | I | - |
| 15 | 0.35 | GN / BK | 3558 | Passive Start Switch Signal 2 | I | - |
| 16 | 0.35 | WH | 4980 | AUTOSAR CAN Bus [-] 6 Serial Data | I | - |
| 17 | 0.35 | GN | 2578 | Private Serial Data Presentation CAN Bus [+] 1 Serial Data | I | - |
| 18 | 0.35 | BN | 2577 | Private Serial Data Presentation CAN Bus [-] 1 Serial Data | I | - |
| 19 | 0.35 | WH | 7207 | Ethernet Bus 1 Enable Signal | I | - |
| 20 - 22 | - | - | - | Not Occupied | - | - |
| 23 | 0.35 | BU / WH | 4985 | AUTOSAR CAN Bus [+] 5 Serial Data | I | - |
| 24 | 0.35 | BU / YE | 4984 | AUTOSAR CAN Bus [-] 5 Serial Data | I | - |
| 25 | - | - | - | Not Occupied | - | - |
| 26 | 0.35 | YE | 4981 | AUTOSAR CAN Bus [+] 6 Serial Data | I | - |
| 27 | 0.35 | VT | 2580 | Private Serial Data Presentation CAN Bus [+] 2 Serial Data | I | - |
| 28 | 0.35 | GY | 2579 | Private Serial Data Presentation CAN Bus [-] 2 Serial Data | I | - |
| 29 | 0.35 | GN / WH | 4975 | Ethernet Bus 1T [+] | II | - |
| 30 | 0.35 | GN | 4974 | Ethernet Bus 1T [-] | II | - |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.