The Chevrolet Corvette C8 (2020-2022) represents a groundbreaking shift to a mid-engine design super car, blending performance and modern technology. Its electrical system, like all vehicles, is protected by fuses and relays to ensure smooth and safe operation of various components.
The fuse box in the Corvette C8 is located in both the engine compartment and the interior. The engine compartment fuse box manages high-demand systems such as the engine control unit, cooling system, and lighting. The interior fuse box covers lower-demand systems like the infotainment, power windows, and interior lighting. Fuses in these boxes prevent circuit overloads by cutting power if a fault is detected.
Relays in the Corvette C8 function as switches that control high-power systems such as the fuel pump, starter motor, and cooling fans. These relays enable lower-current circuits to safely control high-current systems. Regular inspection and maintenance of the fuses and relays are critical to ensure the vehicle’s complex electrical systems continue operating without issues, safeguarding essential and luxury features alike.
MUST READ: DYI – How to Check Car Fuses?
(2020-2022) Chevrolet Corvette (C8) fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Chevrolet Corvette (C8) 2020-2022 fuse assignment
Year of production: from 2020, 2021, 2022
Instrument Panel Fuse Block
Fuse Box Location
The instrument panel fuse block is behind the glove box. The glove box can be accessed by unlatching the door damper and squeezing the pivot to release the damper ring. Pull the glove box bin side walls in to release the door stops. Then turn the door until the hinge hooks release from hinge pin.
Fuse Box Diagram
Version 1
Version 2Assignment of the fuses in the Instrument Panel Fuse Box
| № | Usage |
|---|---|
| 1 | – |
| 2 | Front wiper |
| 3 | Cooling fan 1 |
| 4 | – |
| 5 | Cooling fan 2 |
| 6 | Front blower |
| 7 | Front lift/ Automatic level control |
| 8 | Shifter interface board module |
| 9 | – |
| 10 | Display IP cluster/ HVAC/ Center stack module |
| 11 | USB |
| 12 | – |
| 13 | – |
| 14 | Glove box |
| 15 | – |
| 16 | – |
| 17 | Remote function actuator |
| 18 | Front trunk release |
| 19 | Intelligent battery sensor |
| 20 | Exterior lighting module 1 |
| 21 | Exterior lighting module 3 |
| 22 | Exterior lighting module 4 |
| 23 | Body control module 2 |
| 24 | Exterior lighting module 6 |
| 25 | Amplifier |
| 26 | Automatic occupant sensing/ Electric park brake |
| 27 | Video processing module |
| 28 | Right headlamp |
| 29 | – |
| 30 | Sensing and diagnostic module/ Automatic occupant sensing |
| 31 | Body control module 1 |
| 32 | Column lock module |
| 33 | Data link connection/ Wireless charging module |
| 34 | Telematics/Head up display |
| 35 | Horn |
| 36 | – |
| 37 | – |
| 38 | Front wash pump |
| 39 | Rear auxiliary power outlet |
| 40 | Performance data recorder/ Center stack module |
| 41 | – |
| 42 | Theft deterrent |
| 43 | Left headlamp |
| 44 | Exterior lighting module 2 |
| 45 | Power steering column module |
| 46 | Body control module 3 |
| 47 | Exterior lighting module 5 |
| 48 | Exterior lighting module 7 |
| 49 | Body control module 4 |
| 50 | Front auxiliary power outlet |
| 51 | – |
| 52 | Steering wheel control switch |
| 53 | Heated steering wheel |
| 54 | – |
| Relays | |
| K1 | – |
| K2 | Glove box |
| K3 | Horn |
| K4 | Front washer |
| K5 | Retained accessory power/Accessory |
| K6 | Front trunk release 1 |
| K7 | – |
| K8 | – |
| K9 | Front trunk release 2 |
| K10 | Wiper |
Rear Compartment Fuse Block
Fuse Box Location
The rear compartment fuse block is in the rear of the vehicle in between the seats.
To Access:
- Open top cover.
- Remove the top cover by pushing inward on the latch.
- Pull the cover upward.
Fuse Box Diagram
Assignment of the fuses in the Rear Compartment Fuse Box
| № | Usage |
|---|---|
| 1 | Driver memory seat module/ Power seat |
| 2 | Driver heated seat |
| 3 | Passenger memory seat module/ Power seat |
| 4 | Passenger heated seat |
| 5 | Transmission control module |
| 6 | 2020: Rear park assist |
| 7 | Power sounder module/ Pedestrian friendly alert function |
| 8 | Side Blind Zone Alert/ Rear Park Assist |
| 9 | Column lock module |
| 10 | Engine control module/ Air conditioning |
| 11 | – |
| 12 | Lithium ion battery module |
| 13 | Active fuel management |
| 14 | Seat fan |
| 15 | – |
| 16 | Exterior lighting module |
| 17 | Instrument panel cluster/ Shifter interface board/ Transmission control module/ Electronic brake control module |
| 18 | Engine control module |
| 19 | – |
| 20 | Sensing and diagnostic module/ Inside rear view mirror |
| 21 | Exhaust valve solenoid |
| 22 | Fuel pump/ Fuel tank zone module |
| 23 | Tonneau left |
| 24 | Tonneau right |
| 25 | Convertible top right |
| 26 | Convertible top left |
| 27 | Electronic suspension control |
| 28 | – |
| 29 | CGM |
| 30 | O2 sensor |
| 31 | O2 sensor/ Engine oil/ Canister purge/ Active fuel management |
| 32 | Ignition even |
| 33 | Ignition odd |
| 34 | Engine control module 1 |
| 35 | Engine control module/ Mass air flow sensor/ O2 sensor/ Air conditioning |
| 36 | – |
| 37 | Canister vent |
| 38 | Latch control module |
| 39 | Right window switch/ Door lock |
| 40 | Left window switch/ Door lock |
| 41 | – |
| 42 | Engine control module 2 |
| 43 | – |
| 44 | Air conditioning clutch |
| 45 | – |
| 46 | – |
| 47 | – |
| 48 | – |
| 49 | Auxiliary cooling fan right |
| 50 | – |
| 51 | – |
| 52 | – |
| 53 | Starter solenoid |
| 54 | Auxiliary cooling fan left |
| 55 | Front lift/Automatic leveling control |
| 56 | – |
| 57 | Rear window defogger |
| 58 | – |
| 59 | Left/right window |
| 60 | Passenger power seat |
| 61 | Driver power seat |
| Relays | |
| K1 | – |
| K2 | Powertrain |
| K3 | Run/crank |
| K4 | Rear defogger |
| K5 | Air conditioning clutch |
| K6 | – |
| K7 | – |
| K8 | – |
| K9 | – |
| K10 | – |
| K11 | – |
| K12 | – |
| K13 | – |
| K14 | Starter solenoid |
| K15 | – |
Conclusion
For owners and enthusiasts of classic Chevrolet Corvette (C8) 2020-2022, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Chevrolet’s craftsmanship and innovation in the automotive industry during that era.
