Chevrolet Sonic (Aveo) 2012-2020 fuse box and relay Diagrams
The Chevrolet Sonic, also known as the Aveo in some markets, produced between 2012 and 2020, is a popular subcompact car praised for its stylish design, efficient performance, and practical features. A critical part of its functionality is its electrical system, which relies heavily on fuse boxes and relays to operate various components safely and effectively.
The fuse box in the Chevrolet Sonic/Aveo is located in two primary areas: one in the engine compartment and another inside the cabin, typically on the driver’s side. The engine compartment fuse box handles high-power components like the engine and ABS, while the interior fuse box manages lower-power systems such as lighting, climate control, and infotainment. Each fuse in these boxes is designed to protect its respective circuit by “blowing” in case of an electrical fault, preventing damage to other components.
Relays in the Sonic/Aveo serve as electrically operated switches for high-current systems, such as the starter, cooling fans, and fuel pump. By isolating these high-power circuits, relays help ensure safe and efficient operation. Regular checks and maintenance of fuses and relays are essential for the vehicle’s reliability, helping prevent electrical issues and ensuring smooth performance.
MUST READ: DYI – How to Check Car Fuses?
(2012-2020) Chevrolet Sonic (Aveo) 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 Sonic (Aveo) 2012-2020 fuse assignment
- Cigar lighter (power outlet) fuse is the fuse №. 34 (CIGAR APO) in the Instrument panel fuse box.
Year of production: from 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Fuse box Locations
Instrument Panel
The fuse box is located in the instrument panel (on the driver’s side) behind the cover.
Engine Compartment
The fuse box is located in the engine compartment.
Fuse box diagrams
2013, 2014, 2015, 2016
Instrument Panel
Assignment of the fuses in the Instrument Panel (2013-2016)
| № | Usage |
|---|---|
| 1 | DLIS |
| 2 | Data Link Connector |
| 3 | Airbag |
| 4 | Liftgate |
| 5 | Spare |
| 6 | Body Control Module 8 |
| 7 | Body Control Module 7 |
| 8 | Body Control Module 6 |
| 9 | Body Control Module 5 |
| 10 | Body Control Module 4 |
| 11 | Body Control Module 3 |
| 12 | Body Control Module 2 |
| 13 | Body Control Module 1 |
| 14 | Instrument Cluster |
| 15 | OnStar |
| 16 | Ultrasonic Rear Park Assist |
| 17 | Driver Information Center |
| 18 | Audio |
| 19 | Trailer |
| 20 | VLBS |
| 21 | CHEVYSTAR |
| 22 | Heating, Ventilation, Air Conditioning |
| 23 | HDLPALC |
| 24 | Clutch |
| 25 | Instrument Cluster/ Automatic Occupant Sensing |
| 26 | Airbag Run/Crank |
| 27 | Run Relay |
| 28 | Liftgate Release |
| 29 | Trailer Run/Crank |
| 30 | Clock Spring |
| 31 | Heating, Ventilation, and Air Conditioning |
| 32 | Spare |
| 33 | Sunroof |
| 34 | Cigarette Lighter |
| 35 | Spare |
| 36 | Rear Power Windows |
| 37 | Front Power Windows |
| 38 | RAP/ACCY |
| 39 | DC/DC Converter |
| 40 | Driver Power Window Express Up/Down |
| 41 | PTC2 |
| 42 | PTC1 |
| 43 | Battery Connector |
Engine Compartment (LUV and LUW Engines)
Assignment of the fuses and relay in the Engine Compartment (LUV and LUW, 2013-2016)
| № | Usage |
|---|---|
| Mini Fuses | |
| 1 | Antilock Brake System Valve |
| 2 | Sunroof |
| 3 | Not Used |
| 4 | Rear Wiper |
| 5 | Regulated Voltage Control |
| 6 | Antilock Brake System Fluid |
| 7 | Automatic Occupant Sensing/ROS |
| 8 | Outside Rearview Mirror |
| 9 | Not Used |
| 10 | Rear Window Defogger |
| 11 | Not Used |
| 12 | Heated Outside Rearview Mirror |
| 13 | Heated Front Seat |
| 14 | Fuel System Control Module 1 |
| 15 | Flex Fuel |
| 16 | Washer |
| 17 | Fuel Pump (1.8L) |
| 18 | Engine Control Module 5 |
| 19 | Fuel System Control Module 2/ Leveling |
| 20 | Transmission Control Module 1 |
| 21 | Engine Control Module 1 |
| 22 | Coil |
| 23 | Engine Control Module 4 |
| 24 | Engine Control Module 3 |
| 25 | Engine Control Module 2 |
| 26 | Injector/ Ignition Coil |
| 27 | Engine Control Module |
| 28 | Air Conditioning Compressor Clutch |
| 29 | Transmission Control Module |
| 30 | Horn |
| 31 | Front Fog Lamps |
| 32 | Left High Beam |
| 33 | Right High Beam |
| SPARE | Spare |
| J-Case Fuses | |
| 1 | Antilock Brake System Pump |
| 2 | Front Wiper |
| 3 | Blower |
| 4 | Run/Crank IEC |
| 5 | Not Used |
| 6 | Cooling Fan K5 |
| 7 | Cooling Fan K4 |
| 8 | EVP |
| 9 | Start |
| Relays | |
| RLY 1 | Front Wiper Control Relay |
| RLY 2 | Front Wiper Speed Relay |
| RLY 3 | Rear Window Defogger Relay |
| RLY 4 | Run/Crank Relay |
| RLY 5 | Not Used |
| RLY 6 | Fuel Pump Relay (1.8L) |
| RLY 7 | Cooling Fan K2 Relay (1.4L) |
| RLY 8 | Cooling Fan K3 Relay (1.8L), Cooling Fan K3 High Current Relay (1.4L) |
| RLY 9 | Powertrain Relay |
| RLY 10 | Start High Current Relay |
| RLY 11 | Air Conditioning Compressor Clutch Relay |
| RLY 12 | High-Beam Relay |
| RLY 13 | Cooling Fan K1 Relay |
Engine Compartment (LWE Engine)
Assignment of the fuses and relay in the Engine Compartment (LWE, 2013-2016)
| № | Usage |
|---|---|
| Mini Fuses | |
| 1 | Antilock Brake System Valve |
| 2 | Sunroof |
| 3 | Not Used |
| 4 | Variable Water Pump Power |
| 5 | Outside Rearview Mirror |
| 6 | AOS/ROS |
| 7 | ABS Oil |
| 8 | Regulated Voltage Control |
| 9 | Rear Wiper |
| 10 | Not Used/IBS (If equipped) |
| 11 | Rear Window Defogger |
| 12 | Not Used/Electric Steering Column Lock (If equipped) |
| 13 | Not Used/SAI Valve (If equipped) |
| 14 | Heated Outside Rearview Mirror |
| 15 | Heated Seat Front |
| 16 | Fuel System Control Module 1 |
| 17 | Canister Vent |
| 18 | Washer |
| 19 | Fuel Pump (If equipped) |
| 20 | Engine Control Module 5 |
| 21 | Fuel System Control Module 2/Leveling |
| 22 | Transmission Control Module 1/DC-DC Converter |
| 23 | Auxiliary Water Pump Power |
| 24 | Engine Control Module 1 |
| 25 | Coil |
| 26 | Engine Control Module 4 |
| 27 | Engine Control Module 3 |
| 28 | Engine Control Module 2 |
| 29 | Injector/ Ignition Coil |
| 30 | Engine Control Module |
| 31 | Air Conditioning Compressor Clutch |
| 32 | Transmission Control Module |
| 33 | Horn |
| 34 | Front Fog Lamps |
| 35 | Left High Beam |
| 36 | Right High Beam |
| J-Case Fuses | |
| 1 | Front Wiper |
| 2 | Antilock Brake System Pump |
| 3 | Blower |
| 4 | Run/Crank IEC |
| 5 | REC |
| 6 | Cooling Fan K4 |
| 7 | Cooling Fan K5 |
| 8 | SAI Pump (If equipped) |
| 9 | EVP |
| 10 | Start |
| Micro Relays | |
| RLY 1 | Front Wiper Control |
| RLY 3 | Front Wiper Speed |
| HC-Micro Relays | |
| RLY 7 | Auxiliary Water Pump Power (If equipped) |
| RLY 12 | Start |
| U-Micro Relays | |
| RLY 2 | Variable Water Pump Power |
| RLY 6 | Not Used/SAI Valve (If equipped) |
| RLY 8 | Fuel Pump (If equipped) |
| RLY 13 | Air Conditioning Compressor Clutch |
| RLY 14 | High-Beam Headlamps |
| Mini Relays | |
| RLY 4 | Rear Defogger |
| RLY 5 | Run/Crank |
| RLY 9 | SAI Pump (If equipped) |
| RLY 10 | Cooling Fan K3 |
| RLY 11 | P/T |
| RLY 15 | Cooling Fan K1 |
2017, 2018, 2019, 2020
Instrument Panel
Assignment of the fuses in the Instrument Panel (2017, 2018)
| Name | Description |
|---|---|
| DLS | Discrete logic ignition switch |
| DLC | Data Link Connector |
| SDM | Sensing and diagnostic module |
| L/GATE | Liftgate |
| PWR WNDW REAR | Rear power window |
| 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 | Body Control Module 2 |
| BCM1 | Body Control Module 1 |
| IPC | Instrument panel cluster |
| TELEMATICS | Telematics |
| PAS/SBSA | Parking assist system/Side blind spot alert system |
| RAIN SNSR | Rain sensing wiper |
| AUDIO | Audio |
| TRAILER1 | Trailer 1 |
| LDW/FCA | Lane departure warning/Front collision alert |
| CGM | Central gateway module |
| HVAC1 | Heating, ventilation, and air conditioning 1 |
| HLLD SW | Automatic headlamp leveling switch |
| IPC/AOS | Instrument panel cluster/Automatic occupant sensing display |
| SPARE | — |
| TRAILER2 | Trailer hitch 2 |
| CLOCKSPRING | Clock spring |
| HVAC2 | Heating, ventilation, and air conditioning 2 |
| HTD STR WHL | Heated steering wheel |
| SPARE | — |
| S/ROOF SW | Sunroof switch |
| CIGAR APO | Cigar auxiliary power outlet |
| ESCL | Electric steering column lock |
| PWR WNDW FRONT | Front power windows |
| IRAP ACCY | IRAP accessory |
| BATT CONN | Battery connector |
| RUN RELAY | Run relay |
| L/GATE RELAY | Liftgate relay |
| IRAP RELAY | IRAP relay |
| RAP/ACCY RELAY | Retained accessory power/Accessory relay |
Engine Compartment, 1,8L
Assignment of the fuses and relay in the Engine Compartment, 1.8L (2017, 2018)
| Mini fuses | Usage |
|---|---|
| 1 | ABS valve |
| 2 | Sunroof |
| 4 | Rear fog lamp (If equipped) |
| 5 | Exterior rearview mirror/Power window switch |
| 6 | Automatic occupant sensing/ROS |
| 7 | Passive entry/Passive start |
| 8 | Regulated voltage control |
| 10 | Not used/Intelligent battery sensor |
| 11 | Rear window defogger |
| 12 | Electric steering column lock |
| 13 | Not used/SAI valve (If equipped) |
| 14 | Heated exterior rearview mirror |
| 15 | Front heated seats |
| 16 | Fuel system control module 1 |
| 17 | Canister vent |
| 18 | Washer |
| 19 | Fuel pump (If equipped) |
| 20 | Engine control module 5 |
| 21 | Fuel system control module 2/Leveling |
| 22 | Transmission control module 1/DC DC converter |
| 24 | Engine control module 1 |
| 25 | Coil |
| 26 | Engine control module 4 |
| 27 | Engine control module 3 |
| 28 | Engine control module 2 |
| 29 | Injector/Ignition coil |
| 30 | Engine control module |
| 31 | Air conditioning clutch |
| 32 | Transmission control module |
| 33 | Horn |
| 34 | Front fog lamps |
| 35 | Left high-beam headlamp |
| 36 | Right high-beam headlamp |
| J-Case fuse | |
| 1 | Front wipers |
| 2 | Antilock brake system pump |
| 3 | Blower |
| 4 | Run/Crank IEC |
| 6 | Cooling Fan K4 |
| 7 | Cooling Fan K5 |
| 8 | SAI pump (If equipped) |
| 9 | Electric vacuum pump |
| 10 | Start |
| Relays | |
| RLY 1 | Front wiper control |
| RLY 2 | Rear fog lamp (If equipped) |
| RLY 3 | Front wiper speed |
| RLY 4 | Rear defogger |
| RLY 5 | Run/Crank |
| RLY 6 | Not used/SAI valve (If equipped) |
| RLY 8 | Fuel pump (If equipped) |
| RLY 9 | SAI pump (If equipped) |
| RLY 10 | Cooling fan K3 |
| RLY 11 | P/T |
| RLY 12 | Start |
| RLY 13 | Air conditioning clutch |
| RLY 14 | High-beam headlamps |
| RLY 15 | Cooling fan K1 |
Engine Compartment, 1.4L
Assignment of the fuses and relay in the Engine Compartment, 1.4L (2017, 2018, 2019, 2020)
| Mini fuses | Usage |
|---|---|
| 1 | Antilock brake system valve |
| 2 | Sunroof |
| 4 | Rear fog lamp (If equipped) |
| 5 | Exterior rearview mirror/Power window switch |
| 6 | Automatic occupant sensing/ROS |
| 7 | Passive entry/Passive start |
| 8 | Regulated voltage control |
| 9 | Rear wiper |
| 10 | Not used/Intelligent battery sensor |
| 11 | Rear window defogger |
| 12 | Electric steering column lock |
| 14 | Heated Exterior rearview mirror |
| 15 | Front heated seats |
| 16 | Fuel system control module 1 |
| 17 | Canister vent |
| 18 | Washer |
| 20 | Engine control module 5 |
| 21 | Fuel system control module 2/Leveling |
| 22 | Transmission control module 1/DC DC converter |
| 24 | Engine control module 1 |
| 25 | Coil |
| 26 | Engine Control Module 4 |
| 27 | Engine Control Module 3 |
| 28 | Engine Control Module 2 |
| 29 | Injector/Ignition Coil |
| 30 | Engine control module |
| 31 | Air conditioning clutch |
| 32 | Transmission control module |
| 33 | Horn |
| 34 | Front fog lamps |
| 35 | Left high-beam headlamp |
| 36 | Right high-beam headlamp |
| J-Case fuses | |
| 1 | Front Wiper |
| 2 | Antilock brake system pump |
| 3 | Blower |
| 4 | Run/Crank IEC |
| 5 | Power seat |
| 6 | Cooling Fan K4 |
| 7 | Cooling Fan K5 |
| 9 | Electric vacuum pump |
| 10 | Start |
| Relays | |
| RLY 1 | Front wiper control |
| RLY 2 | Rear fog lamp (If equipped) |
| RLY 3 | Front wiper speed |
| RLY 4 | Rear Defogger |
| RLY 5 | Run/Crank |
| RLY 9 | Cooling fan K2 |
| RLY 10 | Cooling Fan K3 |
| RLY 11 | P/T |
| RLY 12 | Start |
| RLY 13 | Air conditioning clutch |
| RLY 14 | High-beam headlamps |
| RLY 15 | Cooling Fan K1 |
Conclusion
For owners and enthusiasts of classic Chevrolet Sonic (Aveo) 2012-2020, 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.