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 MANUALSGMC2024SIERRA 2500 HD DENALI ULTIMATEREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSELECTRICAL CENTER IDENTIFICATION VIEWS (2 OF 2)ELECTRICAL CENTER IDENTIFICATION VIEWSX53AF BODY WIRING HARNESS JUNCTION BLOCK
2024 GMC Sierra 2500 HD Denali Ultimate
X53AF Body Wiring Harness Junction Block
2024 GMC Sierra 2500 HD Denali UltimateSECTION X53AF Body Wiring Harness Junction Block
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | 13575574 | J-35616-5 (PU) | J-38125-215A |
| II | 13578850 | J-35616-5 (PU) | J-38125-215A |
| III | 19332366 | J-35616-35 (VT) | J-38125-212 |
| IV | Not required | J-35616-22 (RD) | No Tool Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | 0.75 | WH / GN | 7728 | Major Endgate High Relay Control | III | - |
| 2 | 1 | GN | 1299 | Major Endgate Motor Control | III | - |
| 5 | 1 | VT | 7725 | Minor Endgate Motor Control | III | - |
| 7 | 0.75 | WH / GY | 7297 | Minor Endgate High Relay Control | III | - |
| 8 | 1.5 | BK | 1550 | Ground | III | - |
| 10 | 0.75 | BU / VT | 7729 | Major Endgate Low Relay Control | III | - |
| 15 | 0.5 | BK | 1550 | Ground | III | - |
| 16 | 1 | RD / BN | 8240 | Battery Positive Voltage | III | - |
| 17 | 0.5 | BK | 1550 | Ground | III | - |
| 18 | 1 | YE / BK | 7730 | Major Endgate Motor Low Reference | III | - |
| 20 | 1 | RD / BN | 8240 | Battery Positive Voltage | III | - |
| 21 | 0.5 | BK | 1550 | Ground | III | - |
| 26 | 1 | RD / BN | 8240 | Battery Positive Voltage | II | - |
| 27 | 0.75 | RD / WH | 5740 | Battery Positive Voltage | III | - |
| 29 | 0.75 | RD / BN | 6640 | Battery Positive Voltage | III | - |
| 30 | 10 | RD / GY | 142 | Battery Positive Voltage | IV | - |
| 35 | 0.75 | RD / BU | 6740 | Battery Positive Voltage | III | - |
| 37 | 0.75 | RD / GN | 6140 | Battery Positive Voltage | III | - |
| 38 | 0.5 | RD / YE | 6540 | Battery Positive Voltage | III | - |
| 41 | 0.5 | RD / VT | 2640 | Battery Positive Voltage | III | - |
| 42 | 10 | RD / GN | 242 | Battery Positive Voltage | IV | - |
| 44 | 2.5 | RD / YE | 7440 | Battery Positive Voltage | I | - |
| 46 | 2.5 | RD / VT | 8640 | Battery Positive Voltage | I | - |
| 48 | 0.5 | RD / WH | 4740 | Battery Positive Voltage | III | - |
| 49 | 0.5 | RD / BU | 4540 | Battery Positive Voltage | III | - |
| 50 | 2.5 | RD / YE | 3740 | Battery Positive Voltage | III | - |
| 51 | 2.5 | RD / VT | 4442 | Primary Fused Battery Positive Voltage | III | - |
| 52 | 0.5 | RD / BN | 2240 | Battery Positive Voltage | III | - |
| 57 | 2.5 | RD / VT | 8640 | Battery Positive Voltage | III | - |
| 58 | 2.5 | BK | 1550 | Ground | III | - |
| 59 | 0.5 | BK | 1550 | Ground | III | - |
| 60 | 2.5 | RD / VT | 8640 | Battery Positive Voltage | III | - |
| 61 | 2.5 | BK | 1550 | Ground | III | - |
| 62 | 0.5 | BK | 1550 | Ground | III | - |
| 71 | 0.5 | YE / VT | 6191 | Power Rear Window Switch Open Signal | III | - |
| 72 | 2 | VT / YE | 7453 | Window Motor Rear Auxiliary Open Control | III | - |
| 73 | 0.5 | WH | 6192 | Sliding Rear Window Switch Close Signal | III | - |
| 74 | 2 | YE | 7454 | Window Motor Rear Auxiliary Close Control | III | - |
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.