2020 Chevrolet Spark Fuses and Fuse Box | How to Fix a Blown Fuse
The electrical system in the 2020 Chevrolet Spark is very complete, and it uses fuses to keep different parts from overheating. The fuses are kept in a fuse box, which is a central location meant to keep the car’s electrical systems safe. The fuse box in a 2020 Chevrolet Spark is usually placed somewhere easy to get to, like inside the trunk or under the hood. Each fuse controls a different electrical system or part, like the music system, the power windows, or the lights. If something goes wrong or there is an electricity problem, a blown fuse could be the cause. When a fuse blows, it cuts off the electricity that it’s supposed to protect, keeping the related parts from getting damaged. Finding the broken fuse, taking it out, and replacing it with a new one of the same amperage value are the only steps needed to fix a blown fuse. The switch box should be checked and maintained regularly to make sure that all of the car’s systems work well and to effectively fix electrical problems.
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Electrical System
Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers 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, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.
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 a combination of fuses and circuit breakers. This greatly reduces the chance of damage 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 band 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
The engine compartment fuse block is on the driver’s side of the vehicle, near the battery.
Caution
Spilling liquid on any electrical component in the vehicle may damage it. Always keep the covers on any electrical component.
To access the fuses, press the tab at the front of the cover, and lift the cover.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuses | Usage |
| 1 | Liftgate latch |
| 2 | Transmission output speed sensor |
| 3 | Rear defogger |
| 4 | Outside mirror heater |
| 5 | Sunroof |
| 6 | Continuously variable transmission control module |
| 7 | Mass airflow sensor |
| 8 | – |
| 9 | ABS valve |
| 10 | Regulated voltage control |
| 11 | Rear vision camera |
| 12 | – |
| 13 | – |
| 14 | Engine control module/ Transmission control module |
| 15 | Fuel injection control module/ Starter motor |
| 16 | Fuel pump motor |
| 17 | The engine control module 1 |
| 18 | Engine Control Module 2 |
| 19 | Injector/Ignition |
| 20 | A/C system |
| 21 | Intelligent battery sensor |
| 22 | Electric steering column lock |
| 23 | Cooling fan – low |
| 24 | Virtual key pass system sensor |
| 25 | Outside mirror motor control |
| 26 | Engine control module/ Transmission control module battery |
| 27 | Canister vent solenoid |
| 28 | – |
| 29 | Automatic occupant sensing |
| 30 | Headlamp leveling motor |
| 31 | Horn |
| 32 | Front fog lamps |
| 33 | Left high beam headlamp |
| 34 | Right high beam headlamp |
| 35 | Virtual key pass system module |
| 36 | Rear wiper |
| 37 | Left cornering lamp |
| 38 | Washer motor |
| 39 | Right cornering lamp |
| 40 | – |
| 41 | Virtual key pass system sensor |
| 42 | Starter 2 |
| 43 | In panel bussed electrical center |
| 44 | Automated manual transmission |
| 45 | Starter 1 |
| 46 | ABS pump |
| 47 | Cooling fan – high |
| 48 | Front wiper motor |
| 49 | Accessory/ Retained accessory power |
| Relays | Usage |
| RLY1 | Rear defogger |
| RLY2 | Transmission control module |
| RLY3 | Fuel pump motor |
| RLY4 | Starter 2 |
| RLY5 | A/C system |
| RLY6 | – |
| RLY7 | Cooling fan – low |
| RLY8 | Run/Crank |
| RLY9 | Powertrain |
| RLY10 | Starter 1 |
| RLY11 | Cooling fan – high |
| RLY12 | Front fog lamps |
Instrument Panel Fuse Block
The instrument panel fuse block is on the underside of the driver-side instrument panel.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuses | Usage |
| ONSTAR | OnStar |
| HVAC | HVAC control |
| CNTR/ECC | module/ECC |
| IPC | Instrument cluster |
| TCM | Transmission control module |
| RDO | Radio |
| BCM1 | Body Control |
| (AT S&S) | module 1 (CVT stop and start) |
| SBSA/RPA | SBSA/Rear park assist |
| DLC | Data link connector |
| ESCL | Electric steering column lock |
| SDM | Sensing and diagnostic module |
| TRANSD | DC-DC converter |
| AQI | Air quality ionizer |
| ETCS | Electronic toll collection system |
| LPM | Linear power module |
| PEPS | Passive entry/ Passive start |
| DLIS (Non AT S&S) | Discrete logic ignition switch (non-CVT stop and start) |
| FCA | Forward collision alert |
| IPC | Instrument cluster |
| RLAD | Reflected LED alert display |
| HLLD SW | Headlamp leveling switch |
| FRT PWR WNDW | Front power window |
| REARPWR WNDW | Rear power window |
| – | – |
| MTA | Automated manual transmission module |
| APO | Auxiliary power outlet |
| S/ROOF | Sunroof |
| CGM | Central gate module |
| – | – |
| BCM8 | Body Control Module 8 |
| BCM7 | Body Control Module 7 |
| BCM6 | Body Control Module 6 |
| BCM5 | Body Control Module 5 |
| BCM4 | Body control module 4 |
| BCM3 | Body control module 3 |
| BCM2 (NonAT S&S) | Body control module 2 (non-CVT stop and start) |
| BCM1 (Non AT S&S) | Body control module 1 (non-CVT stop and start) |
| DLIS (AT S&S) | Discrete logic ignition switch (CVT stop and start) |
| SWC BKLT | Steering wheel controls backlighting |
| – | – |
| TRANS (200/ 400W)/ LOGISTICS | DC-DC converter/ Logistics |
| EXP PWR WNDW | Driver express power window |
| BLWR | Blower motor |
| HTD/SEAT | Front heated seats |
| HVAC CNTR | HVAC module |
| HTD/STR | Heated steering wheel |
| BCM2 (AT S&S) | Body control module 2 (CVT stop and start) |
| Relays | Usage |
| RLY1 | Logistics |
| RLY2 | Accessory/ Retained accessory power |
| RLY3 | Interruptible retained accessory power |
| RLY4 | Run |
FAQs
The fuse box in a 2020 Chevrolet Spark is typically located in the interior of the vehicle, often near the driver’s side or under the dashboard.
The 2020 Chevrolet Spark usually has one main fuse box, but there might be additional fuse panels in specific areas, like the engine compartment.
Fuses protect electrical circuits by breaking the circuit if there is an overload or short circuit, preventing damage to components or electrical fires.
Visually inspect the fuses or use a multimeter to check for continuity. A blown fuse often has a broken filament or a discolored appearance.
The fuse box cover for a diagram that specifies the function and location of each fuse. The headlights may be controlled by a specific fuse.
No, it’s not recommended. Always replace a blown fuse with one of the same amperage to prevent electrical system damage or fire hazards.
Use a fuse puller or a pair of needle-nose pliers to gently grasp and pull the fuse straight out. Do not use excessive force.
Blown fuses can result from issues like electrical shorts, overloading the circuit, faulty components, or wiring problems.
Some vehicles come with spare fuses stored in the fuse box or in a compartment nearby. Check the owner’s manual for details.
It depends on the function of the blown fuse. Critical systems, like headlights or brake lights, may affect safety and legality, so it’s best to replace the fuse before driving.
Identify the fuse controlling the power windows, replace it with a new one of the same rating, and check if the windows are operational. If the issue persists, further inspection may be needed.
It’s generally not required for fuse replacement, but if you’re working on larger electrical components, disconnecting the battery can be a safety precaution.
Yes, a blown fuse can disrupt the function of various electrical components connected to the same circuit.
A fuse puller or needle-nose pliers for removal and replacement, and possibly a flashlight for better visibility.
In such cases, it’s advisable to seek professional help from a certified technician or contact the Chevrolet dealership for further diagnostics and repairs.
Useful Link:
View Full PDF: 2020 Chevrolet Spark User Manual | Auto User Guide
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