2017 Chevrolet Silverado 1500 Fuse Box Diagram & Amperage

Quick Answer

The 2017 Chevrolet Silverado 1500 features multiple fuse boxes located throughout the vehicle to protect various electrical circuits. You'll find them in the following locations:

• Under-hood: On the driver's side, near the battery.
• Instrument Panel (Dash): On the passenger side, behind a removable panel on the kick panel.
• Rear Under Seat / Cargo Area: Under the rear seat on the driver's side (Crew Cab/Double Cab) or behind the seat in a Regular Cab.

Under-hood Fuse Block

The under-hood fuse block is the primary power distribution point for many of the vehicle's major electrical components, including the engine control module, fuel pump, ignition system, and various relays. This fuse box is located on the driver's side, near the battery. Always refer to the fuse legend on the inside of the fuse box cover for the most accurate information for your specific trim level.

Under-hood Relay Locations

The under-hood fuse block also houses several relays crucial for various systems:

• RL1: Fuel Pump Relay
• RL2: Starter Relay
• RL3: Run/Crank Relay
• RL4: HVAC Blower Relay
• RL5: Horn Relay
• RL6: Cooling Fan Relay 1
• RL7: Cooling Fan Relay 2

Instrument Panel Fuse Block

Located on the passenger side kick panel, this fuse box handles circuits for interior accessories, power windows, sunroof, and some body control module functions. To access it, you'll typically need to remove a small access panel.

Rear Under Seat Fuse Block / Cargo Area Fuse Block

This fuse box is often dedicated to rear accessories, trailer wiring, and certain body functions. In Crew Cab and Double Cab models, it's typically found under the driver's side rear seat. In Regular Cab models, it's usually located behind the seat.

How to Test a Fuse

Testing a fuse is a straightforward process that can help you diagnose electrical issues. Here's how you can do it:

1. Locate the Fuse Box: Identify the fuse box relevant to the circuit you're troubleshooting.
2. Identify the Suspect Fuse: Consult the fuse diagram (usually on the fuse box lid or in your owner's manual) to find the fuse associated with the problematic component.
3. Visual Inspection: Most modern fuses have a small wire visible through the clear plastic body. If this wire is broken or melted, the fuse is blown. Remove the fuse using a fuse puller (often located in the under-hood fuse box or with the spare fuses).
4. Use a Multimeter (Recommended):
   • Set your multimeter to the continuity or ohms setting.
   • Touch the multimeter probes to the two metal prongs on top of the fuse (or the fuse terminals if removed).
   • If the fuse is good, the multimeter will show a reading of close to zero ohms or beep (for continuity). If it's blown, it will show an open circuit (OL or infinite resistance) and no beep.
5. Replace the Fuse: If the fuse is blown, replace it with a new fuse of the exact same amperage rating and type. Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

Based on typical vehicle usage and common issues, some fuses in a 2017 Chevrolet Silverado 1500 tend to blow more frequently than others. When troubleshooting, these are good places to start:

• Cigar Lighter / 12V Outlets (Instrument Panel Fuse F2, 20A): These often blow due to overloading from charging multiple devices or using high-power accessories. Check connected devices first.
• Trailer Brake Control (Under-hood Fuse F17, 25A): Issues with trailer wiring or a short in the trailer itself can cause this fuse to blow. Inspect your trailer wiring for any damage or shorts.
• Blower Motor (Under-hood Fuse F12, 40A): A failing blower motor or a blockage in the HVAC system can draw excessive current, blowing this fuse. If this fuse blows repeatedly, have your HVAC system inspected.
• Radio / Infotainment System (Under-hood Fuse F16, 10A or Instrument Panel Fuse F1, 15A): Problems with aftermarket accessories, internal shorts in components, or wiring issues can sometimes lead to these fuses blowing.

Remember to always verify the fuse legend printed on the fuse box lid for your specific vehicle's trim and options, as configurations can vary slightly.

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