2014 Cadillac ELR Replacing Fuses | Diagrams and Relay Guide
Starting to maintain a 2014 Cadillac ELR requires having a good eye for detail and a solid grasp of its complex electrical system. Fuses and relays are the hidden heroes that keep everything running smoothly behind the scenes, from powering basic parts like windows and lights to managing sophisticated features like infotainment and safety systems. Understanding how to change fuses and interpret relay diagrams is essential for maintaining the performance and dependability of your ELR. It’s not only about convenience when it comes to car maintenance. With the ability to examine and resolve electrical faults with confidence and precision, fuse maintenance is becoming more and more accessible to enthusiasts and owners alike.
Electrical System
High Voltage Devices and Wiring Warning
Exposure to high voltage can cause shock, burns, and even death. The high-voltage components in the vehicle can only be serviced by technicians with special training. High-voltage components are identified by labels. Do not remove, open, take apart, or modify these components. High-voltage cable or wiring has an orange covering. Do not probe, tamper with, cut, or modify high-voltage cables or wiring.
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 the following in the vehicle:
- Headlamp Wiring
- Windshield Wiper Motor
- Power Windows and Other Power Accessories
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 features of the vehicle that do not need to be used and replaced 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 the wiper control is turned off. After the removal of the blockage, the wiper motor will restart when the control is then moved to the desired operating position. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper 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.
Engine Compartment Fuse Block 
To open the fuse block cover, press the clips at the front and back and rotate the cover up to the side.
Caution
Spilling liquid on any electrical component of the vehicle may damage it. Always keep the covers on any electrical component. 
Engine Compartment Fuse Block
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
|
Mini Fuses |
Amps |
Usage |
| 1 | 15A | Engine Control Module – Switched Power |
| 2 | 7.5A | Emissions |
|
Mini Fuses |
Amps |
Usage |
| 3 | – | Not Used |
| 4 | 15A | Ignition Coils/ Injectors |
| 5 | 10A | Column Lock |
| 6a | – | Empty |
| 6b | – | Empty |
| 7 | – | Empty |
| 8 | – | Empty |
| 9 | 7.5A | Heated Mirrors |
| 10 | 5A | Air Conditioning Control Module |
| 11 | 7.5A | Traction Power Inverter Module – Battery |
| 12 | – | Not Used |
| 13 | 10A | Cabin Heater Pump and Valve |
|
Mini Fuses |
Amps |
Usage |
| 14 | – | Not Used |
| 15 | 15A | Traction Power Inverter Module and Transmission Control Module – Battery |
| 17 | 5A | Engine Control Module – Battery |
| 22 | 10A | Left High-Beam Headlamp |
| 24 | – | Empty |
| 25 | – | Empty |
| 26 | – | Not Used |
| 31 | 5A | Adaptive Cruise Control/ Auto Headlamp |
|
Mini Fuses |
Amps |
Usage |
| 32 | 5A | Vehicle Integration Control Module |
| 33 | 10A | Run/Crank for Heated Steering Wheel |
| 34 | 10A | Vehicle Integration Control Module – Battery |
| 35 | – | Not Used |
| 36 | 10A | Power Electronics Coolant Pump |
| 37 | 5A | Cabin Heater Control Module |
|
Mini Fuses |
Amps |
Usage |
| 38 | 10A | Rechargeable Energy Storage System (High Voltage Battery) Coolant Pump |
| 39 | 10A | Rechargeable Energy Storage System (High Voltage Battery) Control Module |
| 40 | 10A | Front Windshield Washer |
| 41 | 10A | Right High-Beam Headlamp |
| 46 | – | Empty |
| 47 | – | Empty |
| 49 | – | Empty |
|
Mini Fuses |
Amps |
Usage |
| 50 | 10A | Run/Crank – Rear Vision Camera, Accessory Power Module |
| 51 | 7.5A | Run/Crank for ABS, Aero Shutter, VITM |
| 52 | 5A | Engine Control Module/ Transmission Control Module – Run/Crank |
| 53 | 7.5A | Traction Power Inverter Module – Run/ Crank |
|
Mini Fuses |
Amps |
Usage |
| 54 | 7.5A | Run/Crank – Fuel System Control Module, Air Conditioning Control Module, On Board Charger, Instrument Cluster, Automatic Occupant Sensing, Mirrors |
|
J-Case Fuses |
Amps |
Usage |
| 16 | 20A | AIR Solenoid (PZEV Only) |
| 18 | 30A | Rear Defogger Lower Grid |
|
J-Case Fuses |
Amps |
Usage |
| 19 | 30A | Power Window – Front |
| 20 | – | Empty |
| 21 | 30A | Antilock Brake System Electronic Control Unit |
| 23 | – | Empty |
| 27 | 40A | AIR Pump (PZEV Only) |
| 28 | – | Empty |
| 29 | 30A | Front Wipers |
| 30 | 60A | Antilock Brake System Motor |
| 42 | 30A | Cooling Fan – Right |
| 43 | 30A | Front Wipers |
| 44 | 40A | Charger |
|
J-Case Fuses |
Amps |
Usage |
| 45 | – | Empty |
| 48 | 30A | Cooling Fan – Left |
|
Mini Relays |
Usage |
| 3 | Powertrain |
| 4 | Heated Mirrors |
| 7 | Empty |
| 9 | AIR Pump (PZEV Only) |
| 11 | Empty |
| 12 | Empty |
| 13 | Empty |
| 14 | Run/Crank |
|
Micro Relays |
Usage |
| 1 | Empty |
| 2 | AIR Solenoid (PZEV Only) |
| 6 | Empty |
| 8 | Empty |
| 10 | Empty |
|
Ultra Micro Relays |
Usage |
| 5 | Empty |
Instrument Panel Fuse Block (Left Side) 
The left instrument panel fuse block is on the left side end of the instrument panel, behind the end cap. To access the fuses, insert a the plastic tool between the end panel and the instrument panel, and carefully release the end cap retaining clips. When all clips are released, remove the panel. To reinstall the door, insert the forward edge hook feature, and press around the edges of the end cap to reengage all of the clips. 
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
|
Fuses |
Amps |
Usage |
| F1 | 20A | Power Outlet/ Cigarette Lighter – Top of IP Storage Bin |
| F2 | 15A | Infotainment (HMI, CD) |
|
Fuses |
Amps |
Usage |
| F3 | 10A | Instrument Cluster |
| F4 | 10A | Infotainment Display, Steering Wheel Control Switches |
| F5 | 10A | Heating, Ventilation, & Air Conditioning |
|
Fuses |
Amps |
Usage |
| F6 | 10A | Airbag (Sensing Diagnostic Module/ Passenger Sensing Module) |
| F7 | 15A | Data Link Connector, Left (Primary) |
| F8 | 10A | Column Lock |
| F9 | 10A | OnStar |
| F10 | 15A | Body Control Module 1/ Body Control Module Electronics/ Keyless Entry/Power Moding/ Center High Mounted Stoplamp/ License Plate |
|
Fuses |
Amps |
Usage |
| Lamps/Left Daytime Running Lamp/Left Parking Lamps/Trunk Release Relay Control/ Washer Pump Relay Control/ Switch Indicator Lights | ||
| F11 | 15A | Body Control Module 4/Left Headlamp |
| F12 | – | Empty |
| F13 | – | Empty |
| F14 | – | Empty |
| F15 | 20A | Power Outlet (Inside Console Bin) |
|
Fuses |
Amps |
Usage |
| F16 | 5A | Wireless Charger |
| F17 | – | Empty |
| F18 | – | Empty |
|
Relays |
Usage |
| R1 | Retained Accessory Power Relay for Power Outlets |
| R2 | Empty |
| R3 | Empty |
| R4 | Empty |
|
Diodes |
Usage |
| Diode | Empty |
Instrument Panel Fuse Block (Right Side) 
The right instrument panel fuse block is on the right side end of the instrument panel, behind the end cap. To access the fuses, insert the plastic tool between the end panel and the instrument panel, and carefully release the end cap retaining clips. When all clips are released, remove the panel. To reinstall the door, insert the forward edge hook feature, and press around the edges of the end cap to reengage all of the clips. 
A fuse puller is in the engine compartment fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.
|
Fuses |
Amps |
Usage |
| F1 | 2A | Steering Wheel Switch |
| F2 | 10A | Auto Headlamp Leveling |
|
Fuses |
Amps |
Usage |
| F3 | 10A | Motorized Cup Holder |
| F4 | 15A | Body Control Module 3/ Right Headlamp |
|
Fuses |
Amps |
Usage |
| F5 | 7.5A | Body Control Module 2/ Body Control Module Electronics/ Trunk Lamp/ Right Daytime Running Lamp/Shifter Lock/Switch Backlighting |
| F6 | 15A | Tilt/Telescope Column |
| F7 | 7.5A | Body Control Module 6/ Map Lights/ Courtesy Lights/ Back-up Lamp |
|
Fuses |
Amps |
Usage |
| F8 | 15A | Body Control Module 7/Left Front Turn Signal/Right Rear Stop and Turn Signal Lamp |
| F9 | – | Empty |
| F10 | 15A | Data Link Connector, Right (Secondary) |
| F11 | 7.5A | Universal Garage Door Opener, Rain Sensor, Front Camera |
| F12 | 30A | Blower Motor |
| F13 | – | Empty |
| F14 | – | Empty |
| F15 | – | Empty |
| F16 | 10A | Glove Box |
|
Fuses |
Amps |
Usage |
| F17 | – | Empty |
| F18 | – | Empty |
|
Relays |
Usage |
| R1 | Empty |
| R2 | Glove Box Door |
| R3 | Empty |
| R4 | Empty |
|
Diodes |
Usage |
| DIODE | Empty |
Rear Compartment Fuse Block 
There are two rear compartment fuse blocks, located on the left side of the trunk behind a cover. 
The vehicle may not be equipped with all of the fuses, relays, and features shown.
|
Fuses |
Amps |
Usage |
| F1 | – | Empty |
| F2 | 15A | Fuel System Control Module |
| F3 | 5A | Passive Entry/Passive Start |
|
Fuses |
Amps |
Usage |
| F4 | 15A | Heated Seats |
| F5 | 2A | Regulated Voltage Control, Current Sensor |
| F6 | 10A | Fuel (Diurnal Valve and Evap. Leak Check Module) |
| F7 | 15A | Accessory Power Module Cooling Fan |
| F8 | 30A | Amplifier |
| F9 | – | Empty |
|
Fuses |
Amps |
Usage |
| F10 | 5A | Regulated Voltage Control/ Ultrasonic Front and Rear Parking Assist, Side Blind Zone |
| F11 | 15A | Horn |
| F12 | – | Empty |
| F13 | 30A | Electric Parking Brake |
| F14 | 30A | Rear Defog (Upper Grid) |
| F15 | – | Empty |
| F16 | 10A | Trunk Release |
| F17 | – | Empty |
| F18 | – | Empty |
|
Relays |
Usage |
| R1 | Rear Defog (Upper Grid) |
| R2 | Trunk Release |
| R3 | Empty |
| R4 | Empty |
| R5 | Empty |
| R6 | Empty |
| R7/R8 | Horn |
|
Diodes |
Usage |
| DIODE | Empty |
|
Fuses |
Amps |
Usage |
| F1 | – | Empty |
| F2 | 15A | Radio |
| F3 | 10A | Pedestrian Protection |
| F4 | 10A | CDC |
| F5 | 10A | Memory Seat Module |
| F6 | – | Empty |
|
Fuses |
Amps |
Usage |
| F7 | 10A | Mirror/ Window/Seat Switch |
| F8 | 20A | Passive Entry/Passive Start 2 |
| F9 | 15A | Heated Seat 2 |
| F10 | – | Empty |
| F11 | – | Empty |
|
Fuses |
Amps |
Usage |
| F12 | 30A | Driver Power Seat |
| F13 | 30A | Passenger Power Seat |
| F14 | – | Empty |
| F15 | – | Empty |
| F16 | – | Empty |
| F17 | – | Empty |
| F18 | – | Empty |
|
Relays |
Usage |
| R1 | Empty |
| R2 | Empty |
| R3 | Empty |
| R4 | Empty |
|
Diodes |
Usage |
| DIODE | Empty |
How to Replace Fuses of 2014 Cadillac ELR?
The general procedures to replace a fuse in a 2014 Cadillac ELR are as follows:
- Find the Fuse Box:
- In a Cadillac ELR, the fuse box is usually found inside the car or in the engine compartment.
- Turn off the Ignition:
- To avoid any electrical accidents, make sure the ignition is off before you begin changing any fuses.
- Remove the Fuse:
- Gently remove the out-of-service fuse with a fuse puller tool or a pair of needle-nose pliers. To prevent breaking the fuse or any nearby components, hold onto it firmly yet carefully.
- Inspect the Fuse:
- After removing the fuse, examine it to make sure it hasn’t blown. Usually, a blown fuse will have a visible charred appearance or a damaged wire inside.
- Replace the Fuse:
- Use a fresh fuse with the same amperage rating if the old one blows. Verify that the replacement fuse is inserted into the fuse box correctly.
- Test the Circuit:
- To make sure the electrical component linked to the fuse is operating correctly, turn on the ignition after replacing the fuse.
- Secure the Fuse Box:
- After making sure everything is operating as it should, firmly shut the fuse box.
FAQs
The fuse box of a 2014 Cadillac ELR is usually found on the driver’s side under the dashboard or in the engine compartment.
Examining the fuse element visually usually identifies a blown fuse. The fuse has to be replaced if the metal strip within is melted or broken.
An internet search for a schematic particular to your car model will yield a fuse box layout diagram.
Usually, all you need is a fuse puller tool that comes with your car’s fuse box or a pair of needle-nose pliers.
It might be necessary to take off a cover panel that is under the dashboard or in the engine compartment to reach the fuses in your 2014 Cadillac ELR.
To prevent harming the electrical system, make sure the fuse you use for your 2014 Cadillac ELR has the right type and amperage.
Auto parts stores, internet merchants, or your local Cadillac dealership all sell replacement fuses for 2014 Cadillac ELRs.
Replacing a fuse with a higher amperage rating is not advised because it may cause damage to your 2014 Cadillac ELR’s electrical system or perhaps provide a fire risk.
Your 2014 Cadillac ELR may have an underlying electrical problem that requires professional diagnosis and repair if a fuse keeps blowing.
To avoid electrical shocks or damage, make sure the ignition and any pertinent electrical components are off before changing the fuses in your 2014 Cadillac ELR.
Driving a 2014 Cadillac ELR with a blown fuse is not advised as it could damage important electrical systems required for safe operation.
To guarantee that the electrical systems in your 2014 Cadillac ELR operate as intended, it’s a good idea to check your fuses regularly as part of your routine auto maintenance and to replace any blown fuses right away.
Relays are, in fact, frequently connected to particular electrical parts in your 2014 Cadillac ELR.
Useful Links
View Full PDF: 2014 Cadillac ELR Owner’s Manual|Auto User Guide
Display Setting: Cadillac ELR 2014 Screen Messages Guide
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