Fixing a Blown Fuse: 2018 GMC Canyon Fuse Diagrams Guide
Keeping up with the complicated parts of car care can be hard, especially when it comes to the electrical problems that can happen in new cars. This includes the 2018 GMC Canyon, which has complex electrical systems. Knowing how to fix common problems like a blown fuse is important for drivers who want to keep their car running at its best. This detailed guide on how to fix a blown fuse in a 2018 GMC Canyon is a great resource for both experienced techs and people who like to do their own repairs. Along with making it easier to find and replace fuses, it gives a full picture of the Canyon’s electrical system, showing where the fuse box is located and what each fuse does. It also includes step-by-step steps for doing replacements safely. By giving GMC Canyon owners this information, the guide hopes to help them quickly and easily fix problems with fuses, reducing downtime and making sure that all of the car’s electrical parts work well, from the headlights and audio system to the advanced driver assistance systems. This detailed guide is meant to make the often complicated world of car electrical repair easier to understand so that drivers can keep their 2018 GMC Canyon running smoothly for years to come.
2023 – 2024 GMC CANYON Review, Price, Features and Mileage (Brochure)
Electrical System
Electrical System Overload
The vehicle has fuses to protect against an electrical system overload. Fuses also protect power devices in the vehicle. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, there is a fuse puller in the Engine Compartment Fuse Block. Replace the fuse as soon as possible with one of the same amperage rating.
Headlamp Wiring
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of fires caused by electrical problems.
Danger
Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. The use of an oversized fuse or circuit breaker can result in a vehicle fire. You and others could be seriously injured or killed.
To check a fuse, look at the silver-colored band inside the fuse. If the bad is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating. Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.
Engine Compartment Fuse Block
If the vehicle has a diesel engine, see the Duramax diesel supplement. The engine compartment fuse block is in the engine compartment, on the driver’s side of the vehicle.
Lift the cover to access the fuse block.
Caution
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
A fuse puller is available inside this fuse block.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuse/Relay | Usage |
|---|---|
| F1 | Traction control module power |
| F2 | Engine control module power |
| F3 | Air conditioning clutch |
| F4 | – |
| F5 | Engine control module/Integrated chassis control module/Fuel pump power module |
| F6 | Wipers |
| F7 | Cargo lamp/Bed lighting (if equipped) |
| F8 | Fuel injectors–even |
| F9 | Fuel injectors–odd |
| F10 | Engine control module 1 |
| F11 | Miscellaneous 1/Ignition |
| F12 | Starter |
| F13 | Traction control module |
| F14 | – |
| F15 | – |
| F16 | – |
| F17 | Front axle actuator |
| F18 | – |
| F19 | Aeroshutters |
| F20 | – |
| F21 | Front blower |
| F22 | Antilock brake system valves |
| F23 | – |
| F24 | Trailer |
| F25 | Transfer case electronic control |
| F26 | Antilock brake system pump |
| F27 | Trailer brake control module (if equipped)/Trailer wiring |
| F28 | Rear window defogger |
| F29 | – |
| F30 | Driver heated seat |
| F31 | – |
| F32 | Passenger heated seat |
| F33 | Body control module 3 |
| F34 | Fuel system control module |
| F35 | Integrated chassis control module (if equipped) |
| F36 | Center high-mounted stoplamp |
| F37 | Right high-beam headlamp |
| F38 | Left high-beam headlamp |
| F39 | – |
| F40 | – |
| F41 | – |
| F42 | – |
| F43 | Cooling fan |
| F44 | Vacuum pump |
| F45 | – |
| F46 | Engine control module 2 |
| F47 | Miscellaneous 2/Ignition |
| F48 | Fog lamps (if equipped) |
| F49 | – |
| F50 | Trailer parking lamps |
| F51 | Horn |
| F52 | – |
| F53 | – |
| F54 | – |
| F55 | – |
| F56 | Washer pump |
| F57 | – |
| F58 | – |
| F59 | – |
| F60 | Mirrors defogger |
| F61 | – |
| F62 | Canister vent solenoid |
| F63 | – |
| F64 | Trailer reverse lamp |
| F65 | Left trailer stoplamp/Turn signal lamps |
| F66 | Right trailer stoplamp/Turn signal lamps |
| F67 | Electric power steering |
| F68 | – |
| F69 | Battery regulated voltage control |
| F70 | – |
| F71 | – |
| F72 | – |
| F73 | – |
| F74 | Generator |
| F75 | – |
| K1 | Air conditioning clutch |
| K2 | Starter |
| K3 | – |
| K4 | Wipers speed |
| K5 | Wipers control |
| K6 | Cargo lamp/Bed lighting (if equipped) |
| K7 | Powertrain |
| K8 | – |
| K9 | – |
| K10 | – |
| K11 | Center high-mounted stoplamp |
| K12 | – |
| K13 | Vacuum pump |
| K14 | Trailer parking lamps |
| K15 | Run/Crank |
| K16 | – |
| K17 | Rear window defogger |
Instrument Panel Fuse Block
The instrument panel fuse block is behind the passenger side cowl side trim panel. Remove the plastic nut at the front of the cover, then pull the cover away from the trim panel to access the fuse block.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuse/Relay | Usage |
|---|---|
| F1 | Body control module 1 |
| F2 | – |
| F3 | – |
| F4 | Steering wheel controls |
| F5 | Body control module 2 |
| F6 | – |
| F7 | – |
| F8 | Mirror window module |
| F9 | Instrument cluster |
| F10 | – |
| F11 | Body Control Module 8 |
| F12 | – |
| F13 | OnStar/HVAC |
| F14 | Radio/HMI |
| F15 | Body Control Module 6 |
| F16 | Communication gateway module |
| F17 | Body control module 4 |
| F18 | Airbag |
| F19 | – |
| F20 | Amplifier (if equipped) |
| F21 | – |
| F22 | – |
| F23 | Data link connector/USB |
| F24 | HVAC ignition |
| F25 | Body Control Module 7 |
| F26 | – |
| F27 | – |
| F28 | Instrument panel/Sensing and diagnostic module/Ignition |
| F29 | Miscellaneous/Ignition |
| F30 | – |
| F31 | Front Camera |
| F32 | Steering wheel controls backlighting |
| F33 | Heated steering wheel |
| F34 | Front ventilated seats |
| F35 | Park/Reverse/Neutral/Drive/Low/Wireless charging module |
| F36 | Discrete logic ignition sensor |
| F37 | – |
| F38 | – |
| F39 | Auxiliary power outlet 2 |
| F40 | Auxiliary power outlet |
| F41 | Auxiliary power outlet 1/Lighter |
| F42 | Left power window |
| F43 | Driver power seat |
| F44 | – |
| F45 | Right power window |
| F46 | Passenger power seat |
| K1 | Retained accessory power |
| K2 | Run/Crank |
How to Replace the Fuses of GMC Canyon
Replacing fuses in a GMC Canyon involves several steps. The process is straightforward, but it’s important to proceed with caution to avoid damaging the electrical system or injuring yourself.
Here’s a detailed guide:
Tools You’ll Need:
- Fuse puller or needle-nose pliers
- Replacement fuses (make sure they are the correct amperage)
Instructions:
- Turn Off the Vehicle: Ensure the ignition is off and the keys are removed. This step prevents any electrical issues or short circuits while replacing fuses.
- Locate the Fuse Box: The GMC Canyon has a few fuse boxes. One is located under the hood, usually on the driver’s side, and there’s often another inside the cabin, under the dashboard or near the driver’s side door.
- Open the Fuse Box: Remove the fuse box cover by pressing the tabs or unscrewing it, depending on the design. Some vehicles have a tool for removing fuses attached to the inside of the cover.
- Identify the Faulty Fuse: Inside of the fuse box cover or your vehicle’s layout to find the fuse that controls the malfunctioning component. A blown fuse is usually visible by a broken wire or a blackened interior.
- Remove the Faulty Fuse: Use a fuse puller or needle-nose pliers to carefully remove the blown fuse. Grasp the fuse firmly but gently and pull straight out to avoid breaking it and leaving parts in the socket.
- Insert the New Fuse: Obtain a new fuse of the same amperage (the number will be printed on the top of the fuse). Push it into the empty slot until it is fully seated. Ensure it matches the amperage of the removed fuse to avoid any electrical system damage.
- Test the Replacement: Turn on the ignition and check if the replaced fuse resolves the issue with the component. If the new fuse blows soon after replacement, this may indicate a more severe electrical problem that requires attention.
- Replace the Fuse Box Cover: Once you’ve confirmed that the replacement fuse is working correctly, secure the fuse box cover back into place.
Tips:
- Safety First: Always work in a well-lit area and ensure your hands are dry to avoid any risk of electric shock.
- Spare Fuses: Keep spare fuses of various amperages in your vehicle for emergencies.
- Check Regularly: Regularly inspect your vehicle’s fuses, especially if you’re experiencing electrical issues. This can help prevent being stranded due to a simple blown fuse.
- Correct Amperage: Using a fuse with a higher or lower amperage than recommended can cause significant damage to the vehicle’s electrical system or result in a fire hazard.
Note:
If multiple fuses are blowing or the same fuse blows repeatedly, it might indicate a more serious issue with your GMC Canyon’s electrical system.
FAQs
Symptoms include electrical components not working, such as the radio, lights, or power windows.
The primary fuse box is usually located under the hood, with a secondary panel found on the passenger side of the cabin.
It uses blade fuses of various amperages, color-coded for easy identification.
A blown fuse will often have a broken wire visible through the clear plastic or appear burnt.
Always turn off the engine and disconnect the negative battery cable to ensure safety.
Typically, no special tools are required, but a fuse puller or pliers can be helpful.
Carefully remove the blown fuse with a puller or pliers and insert a new fuse of the same amperage.
Fuse diagrams are usually located on the inside cover of the fuse boxes.
No, always replace with a fuse of the same amperage to prevent electrical system damage.
Repeated blowing usually indicates an underlying electrical problem, such as a short circuit.
It depends on which system the fuse controls. It’s not safe if it affects critical systems like the brakes or headlights.
This is not recommended as it can cause further damage to the vehicle’s electrical system.
It typically has two, one located under the hood and the other inside the cabin.
Check for issues in the wiring or the component itself that may be causing the fuse to blow.
Indirectly, yes, if it affects the engine’s electronic systems or sensors.
Ensure the vehicle is off and the battery is disconnected. Handle fuses by their plastic bodies, not the metal parts.
Regular electrical system maintenance and avoiding overloading circuits can help prevent blown fuses.
Useful Links
View Full PDF: 2018 GMC Canyon Owner’s Manual | Auto User Guide
2023 – 2024 GMC CANYON Review, Price, Features and Mileage (Brochure)