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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCHEVROLET2018TAHOE LT, 4WD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSCOMPONENT LOCATIONS - ELECTRICAL CENTER IDENTIFICATION VIEWS - (1 OF 2)ELECTRICAL CENTER IDENTIFICATION VIEWSX51L FUSE BLOCK - INSTRUMENT PANEL LEFT X1
2018 Chevrolet Tahoe LT, 4WD, Gas
X51L Fuse Block - Instrument Panel Left X1
2018 Chevrolet Tahoe LT, 4WD, GasSECTION X51L Fuse Block - Instrument Panel Left 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 | 13578891 | J-35616-2A (GY) | J-38125-11A | Not Available | Not Available | Not Available | Not Available |
| II | 19301752 | J-35616-35 (VT) | J-38125-11A | Not Available | Not Available | Not Available | Not Available |
| III | 19301761 | J-35616-35 (VT) | J-38125-11A | Not Available | Not Available | Not Available | Not Available |
| IV | 19301767 | J-35616-2A (GY) | J-38125-560 | Not Available | Not Available | Not Available | Not Available |
| V | 19367554 | J-35616-44 (YE) | J-38125-558 | 12110127 | Delphi 19 | F | G |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.5 | RD/BN | 2240 | Battery Positive Voltage | IV | - |
| 2 | 0.5 | RD/BU | 4540 | Battery Positive Voltage | IV | - |
| 3 | 0.5 | RD/VT | 1640 | Battery Positive Voltage | I | - |
| 4 | - | - | - | Not Occupied | - | - |
| 5 | 0.5 | RD/BN | 1140 | Battery Positive Voltage | IV | - |
| 6 - 13 | - | - | - | Not Occupied | - | - |
| 14 | 0.5 | RD/YE | 4340 | Battery Positive Voltage | IV | - |
| 15 | 0.35 | GN/GY | 5286 | Adjustable Pedal Switch Forward Signal | IV | - |
| 16 | 0.5 | RD/VT | 1940 | Battery Positive Voltage | IV | - |
| 17 | 0.75 | RD/GN | 6140 | Battery Positive Voltage | III | - |
| 18 | 0.75 0.75 |
RD/GN RD/GN |
5140 5140 |
Battery Positive Voltage Battery Positive Voltage |
III II |
- - |
| 19 | - | - | - | Not Occupied | - | - |
| 20 | 0.75 | GN/VT | 5130 | Adjustable Pedal Actuator Forward Control | III | - |
| 21 | 5 | RD/VT | 842 | Battery Positive Voltage | V | - |
| 22 | - | - | - | Not Occupied | - | - |
| 23 | 5 | RD/BU | 42 | Battery Positive Voltage | V | - |
| 24 | - | - | - | Not Occupied | - | - |
| 25 | 2.5 | RD/BU | 6740 | Battery Positive Voltage | II | - |
| 26 | - | - | - | Not Occupied | - | - |
| 27 | 2.5 | RD/YE | 5040 | Battery Positive Voltage | II | - |
| 28 | 0.75 | YE | 5129 | Adjustable Pedal Actuator Rearward Control | III | - |
| 29 | - | - | - | Not Occupied | - | - |
| 30 | 0.75 0.5 |
RD/GN VT/WH |
5140 1939 |
Battery Positive Voltage Run/Crank Ignition 1 Voltage |
IV IV |
- -E29 |
| 31 | - | - | - | Not Occupied | - | - |
| 32 | 0.5 | VT/GN | 1739 | Run/Crank Ignition 1 Voltage | IV | - |
| 33 | 0.35 | WH/GY | 5285 | Adjustable Pedal Switch Rearward Signal | IV | - |
| 34 | 0.5 | YE/BK | 5813 | Park Enable Control | IV | - |
| 35 | - | - | - | Not Occupied | - | - |
| 36 | 2.5 | RD/BU | 1842 | Battery Positive Voltage | II | - |
| 37 | 2.5 | RD/BU | 1842 | Battery Positive Voltage | II | - |
| 38 - 41 | - | - | - | Not Occupied | - | - |
| 42 | 0.35 | GN/VT | 5199 | Run/Crank Relay Coil Control | IV | - |
| 43 | 0.35 0.35 |
GY/GN GY/VT |
4083 755 |
RAP Relay 2 Coil Control RAP Relay Coil Control |
IV IV |
BTM -BTM |
| 44 | 0.35 | VT/YE | 43 | Accessory Ignition Voltage | IV | - |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.