Auto User Guide

Fuses Guide: 2016 Cadillac ELR Relay and Fuse Diagrams

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Fuses Guide: 2016 Cadillac ELR Relay and Fuse Diagrams

Few parts are as important as fuses in the complex web of automotive engineering; they protect electrical systems in cars such as the 2016 Cadillac ELR. These little but powerful devices, tasked with safeguarding circuits against overloads and short circuits, make sure that a variety of electrical operations, from lighting to critical safety systems, run smoothly. Any car owner should be familiar with the layout and operation of the fuse box as it provides a quick diagnostic and repair guide for electrical problems. We explore the internal workings of the 2016 Cadillac ELR fuse box in this in-depth tutorial, clearing up any confusion and giving drivers the know-how they need to confidently handle fuse-related issues. This research attempts to empower enthusiasts and do-it-yourself technicians alike by providing a greater understanding of automotive electrical systems and a sense of ownership over one’s vehicle through anything from deciphering fuse ratings to pinpointing the exact placement of each fuse. So come along with us as we take you on a tour through the maze of fuses and show you how to make repairs go well and enjoy your car forever.

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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 or labels. 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 are 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 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

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (1)

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.

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (2)

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
  • 3 – Empty
  • 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 control
  • 12 – Empty
  • 13 10A Cabin heater pump and valve
  • 14 – Power sounder/ Intrusion inclination Mini
  • 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 – Empty
  • 31 5A Adaptive cruise control/Auto headlamp
  • 32 5A Run/Crank for vehicle integration module
  • 33 10A Run/Crank for heated steering wheel
  • 34 10A Vehicle integration control module/ Battery
  • 35 – Empty
  • 36 10A Power electronics coolant pump
  • 37 5A Cabin heater control module
  • 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 pump
  • 41 10A Right high-beam headlamp
  • 46 – Empty
  • 47 – Empty
  • 49 – Empty
  • 50 10A Run/Crank/ Rear vision camera/ Accessory power module/Tyre pressure monitoring 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
  • 54 7.5A Run/Crank/ Fuel system control module/ Air conditioning control module/ Onboard charger/ Instrument cluster/ Automatic occupant sensing/Mirrors J-Case
  • 16 – Empty
  • 18 30A Rear defogger/ Lower grid
  • 19 30A Front power window
  • 20 – Empty J-Case
  • 21 30A Antilock brake system electronic control unit
  • 23 – Empty
  • 27 – Empty
  • 28 – Empty
  • 29 30A Front wipers
  • 30 60A Antilock brake system motor
  • 42 30A Right engine cooling fan
  • 43 30A Front wipers
  • 44 40A Charger
  • 45 – Empty
  • 48 30A Left engine cooling fan 1

Mini Relays Usage

  • 3 Powertrain
  • 4 Heated mirrors/Rear
  • defogger
  • 7 Empty
  • 9 Empty
  • 11 Empty
  • 12 Empty
  • 13 Empty
  • 14 Run/Crank

Micro Relays Usage

  • 1 Empty
  • 2 Empty
  • 6 Empty
  • 8 Empty
  • 10 Empty

Ultra Micro Relays Usage

  • 5 Empty

Instrument Panel Fuse Block (Left Side)

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (3)

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 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.

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (4)

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 Amp Usage

  • F1 20A Power outlet/ Cigarette lighter
  • F2 15A Infotainment (HMI/CD)
  • F3 10A Instrument Cluster Fuses Amp Usage
  • F4 10A Infotainment display
  • F5 10A Heating/ Ventilation/Air conditioning
  • F6 10A Airbag
  • F7 15A Left data link connector
  • F8 10A Column lock
  • F9 10A OnStar 
  • F10 15A Body Control Module 1
  • F11 15A Body Control Module 4
  • F12 – Empty
  • F13 – Empty
  • F14 – Empty
  • F15 20A Power outlet
  • F16 5A Wireless charger
  • F17 – Empty
  • F18 – Empty

Relays Usage

  • R1 Retained accessory power relay
  • R2 Empty
  • R3 Empty
  • R4 Empty

Diodes Usage

  • Diode Empty

Instrument Panel Fuse Block (Right Side)

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (5)

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 a 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.

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (6)

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
  • F3 10A Motorized cupholder
  • F4 15A Body Control Module 3
  • F5 7.5A Body Control Module 2
  • F6 15A Tilt/Telescoping column
  • F7 7.5A Body Control Module 6
  • F8 15A Body control module 7
  • F9 – Empty
  • F10 15A Right data link connector
  • F11 7.5A Universal remote system/ Lane departure warning/Rain sensor
  • F12 30A Blower motor
  • F13 – Empty
  • F14 – Empty
  • F15 – Empty
  • F16 10A Glove box
  • F17 – Empty
  • F18 – Empty

Relays Usage

  • R1 Empty
  • R2 Glove box relay
  • R3 Empty
  • R4 Empty

Diodes Usage

  • DIODE Empty

Rear Compartment Fuse Block

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (7)

There are two rear compartment fuse blocks, located on the left side of the trunk behind a cover.

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (8)

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 1
  • F4 15A Heated seat 1
  • F5 2A Regulated voltage control
  • F6 10A Fuel/ Evaporative leak check module
  • F7 15A Accessory power module cooling fan
  • F8 30A Amplifier
  • F9 – Empty
  • F10 5A Side blind zone assist/ Front and rear parking assist
  • F11 15A Horn
  • F12 – Empty
  • F13 30A Electric parking brake
  • F14 30A Rear defogger
  • F15 – Empty
  • F16 10A Trunk release
  • F17 – Empty
  • F18 – Empty

Relays Usage

  • R1 Rear defogger
  • R2 Trunk release
  • R3 Empty
  • R4 Empty
  • R5 Empty

Relays Usage

  • R6 Empty
  • R7/R8 Horn

Diodes Usage

  • DIODE Empty

Repair Fuses 2016 Cadillac ELR Fuses and Fuse Box Diagram (9)

Fuses Amps Usage

  • F1 – Empty
  • F2 15A Radio
  • F3 10A Pedestrian protection
  • F4 10A CDC
  • F5 10A Memory seat module
  • F6 – Empty
  • F7 10A Mirror/Window/ Seat switch
  • F8 20A Passive Entry/Passive Start 2
  • F9 15A Heated seat 2
  • F10 – Empty
  • F11 – Empty
  • 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 Change Fuses of 2016 Cadillac ELR 

Certainly! Here’s a detailed guide on how to change fuses in a 2016 Cadillac ELR, along with some helpful tips:

  1. Locate the Fuse Box: In the 2016 Cadillac ELR, the fuse box is typically found inside the cabin, usually beneath the dashboard on the driver’s side. Look for a panel labeled “Fuse” or “Fuses” to access it.

  2. Turn Off the Vehicle: Ensure that the vehicle’s ignition is turned off, and remove the key from the ignition switch to prevent electrical mishaps.

  3. Identify the Blown Fuse: Using a flashlight, carefully examine the fuses inside the fuse box. Look for any fuses with a broken wire or a discolored appearance, indicating that they have blown.

  4. Select a Replacement Fuse: Choose a replacement fuse with the same amperage rating as the blown fuse. Using a fuse with a different rating could cause electrical issues or damage to your vehicle.

  5. Remove the Blown Fuse: Using a fuse puller tool or a pair of needle-nose pliers, grip the blown fuse firmly. Pull the fuse straight out of its socket, taking care not to damage the fuse box or adjacent fuses.

  6. Insert the Replacement Fuse: Place the replacement fuse into the empty socket in the fuse box. Ensure it is seated securely and fully inserted to establish a proper electrical connection.

  7. Check for Proper Fit: Double-check that the replacement fuse fits snugly into the socket and is of the correct amperage rating. It should not be loose or protruding from the socket.

  8. Replace the Fuse Box Cover: Once the blown fuse is replaced, carefully reattach the fuse box cover and ensure it is securely fastened to prevent debris from entering.

  9. Test the Circuit: Turn the ignition key to the accessory position or start the vehicle to test the circuit associated with the replaced fuse. Verify that the electrical component or system is functioning correctly.

  10. Dispose of the Blown Fuse: Dispose of the blown fuse properly. You can keep it as a spare in case of future emergencies or dispose of it according to local regulations for electronic waste.

Helpful Tips:

  • Use the fuse puller tool if provided with your vehicle to avoid damaging the fuse or fuse box.
  • Check other fuses if you find one blown fuse, as multiple fuses may blow simultaneously due to the same issue.
  • Keep spare fuses of various amperage ratings in your vehicle’s glove compartment for quick replacements during emergencies.

FAQs

What are the common reasons for fuse failure in a 2016 Cadillac ELR?

Fuse failures in 2016 Cadillac ELRs can be caused by component failures, electrical overloads, or short circuits.

How do I locate the fuse box in my 2016 Cadillac ELR?

The fuse box of a 2016 Cadillac ELR is usually found on the driver’s side under the dashboard or in the engine compartment.

Can I replace fuses in my 2016 Cadillac ELR on my own?

Yes, changing the fuses in a 2016 Cadillac ELR is a simple procedure.

What tools do I need to replace a fuse in a 2016 Cadillac ELR?

It could be necessary to use a fuse puller or a pair of needle-nose pliers to change a fuse in a 2016 Cadillac ELR.

Are there different types of fuses used in the 2016 Cadillac ELR?

The 2016 Cadillac ELR may, in fact, use tiny, standard, or high-current fuses, contingent upon the needs of the electrical system.

How do I determine if a fuse in my 2016 Cadillac ELR is blown?

Examine the fuse visually for any breaks in the metal filament or verify continuity with a multimeter.

What are some signs of a blown fuse in a 2016 Cadillac ELR?

A blown fuse in the 2016 Cadillac ELR can be identified by non-working electrical parts such the radio, power windows, or lighting.

Can I use a higher amp fuse in place of a blown one in my 2016 Cadillac ELR?

No, utilizing a fuse with a greater amp rating can harm the electrical system and be dangerous. Fuse replacements should always have the same amp rating.

How often should I check the fuses in my 2016 Cadillac ELR?

Regularly checking the fuses in your 2016 Cadillac ELR is a smart idea, especially if you see any electrical problems.

What precautions should I take when replacing fuses in my 2016 Cadillac ELR?

To avoid electrical shock or injury, unplug the battery in the 2016 Cadillac ELR before changing the fuses.

Can a blown fuse cause other electrical problems in the 2016 Cadillac ELR?

In the 2016 Cadillac ELR, a blown fuse can interrupt the electrical circuit and result in other parts malfunctioning.

Where can I find a fuse box diagram for my 2016 Cadillac ELR?

The owner’s handbook or the interior of the fuse box cover usually provides the 2016 Cadillac ELR fuse box diagram.

View Full PDF: 2016 Cadillac ELR Owner’s Manual| Auto User Guide

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