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 MANUALSGMC2013SIERRA DENALI 2WD V8-6.2LREPAIR AND DIAGNOSISSTARTING AND CHARGINGPOWER AND GROUND DISTRIBUTIONFUSE BLOCK
2013 GMC Sierra Denali 2WD V8-6.2L
Fuse Block
2013 GMC Sierra Denali 2WD V8-6.2LSECTION Fuse Block
Locations- Component Locations
- Harness Locations
- Fuse Block - Underhood X5
- Fuse Holder
- Junction Block - Right I/P
- Fuse Block - Mobile Radio
- Junction Block - Left I/P (except MEX)
- Fuse Block - Underhood
- Junction Block - Rear Lamps
- Fuse Block - I/P X4
- Junction Block - Right I/P X3
- Fuse Block - Underhood X2
- Fuse Block - Underhood X3
- Fuse Block - Underhood X4
- Junction Block - Rear Lamps Connector
Service and Repair- Procedures
- Removal and Replacement
- 175 Amp Mega Fuse Replacement (Auxiliary Battery)
- 175 Amp Mega Fuse Replacement (Primary Battery)
- 200 Amp Mega Fuse and Auxiliary Electrical Center 12VDC Junction Block Replacement
- Instrument Panel Electrical Center or Junction Block Replacement - Left Side
- Body Wiring Harness Junction Block Replacement
- Underhood Electrical Center or Junction Block Replacement
- Underhood Electrical Center or Junction Block Bracket Replacement
Diagrams- Junction Block - Left I/P, Label
- Junction Block - Left I/P, Top View
- Junction Block - Left I/P, Bottom View
- Junction Block - Left I/P X1 (except MEX)
- Junction Block - Left I/P X2 (except MEX)
- Junction Block - Left I/P X3 (except MEX)
- Junction Block - Left I/P X4 (except MEX)
- Junction Block - Left I/P X5 (SPO Alarm or SPO Heated Seats)
- Junction Block - Left I/P X7 (JF4)
- Junction Block - Left I/P X8 (except MEX)
- Junction Block - Left I/P X9 (Except MEX)
- Junction Block - Left I/P X10 (except MEX)
- Junction Block - Left I/P X11 (except MEX)
- Junction Block - Left I/P X12 (except MEX)
- Junction Block - Left I/P X13 (AN3)
- Junction Block - Left I/P X14 (5Y0, 5X7, 9L4 or SPO Heated Seats)
- Junction Block - Right I/P, Top View
- Junction Block - Right I/P (Wire Entry)
- Junction Block - Right I/P X2
- Junction Block - Right I/P X3
- Junction Block - Right I/P X4
- Junction Block - Right I/P X5
- Junction Block - Right I/P X6
- Junction Block - Rear Lamps
- Junction Block - Rear Lamps X1
- Junction Block - Rear Lamps X2
- Junction Block - Rear Lamps X3
- Junction Block - Rear Lamps X4
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.