Replacing blown fuses: Cadillac CTS 2016 Fuse Diagram Guide
To keep your 2016 Cadillac CTS’s electrical system in good shape, you need to know exactly what the fuse diagrams are for each part. The fuse box in your car, which is usually in the glove compartment or trunk, has a thorough diagram that shows what each fuse does and how much amperage it has. For those unlucky times when a blown fuse stops a certain electrical part from working normally, this diagram will come in handy. Finding the right fuse and changing it with one that has the right amperage will solve the problem quickly and effectively. If a driver is familiar with the CTS’s fuse diagrams, they can quickly fix problems with the lighting, power windows, or other electrical systems. This makes driving more enjoyable and stays true to Cadillac’s commitment to luxury and performance. Always check the owner’s instructions for your car for exact information on where the fuses are located and how much amperage they can handle.
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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. The wiper function is available immediately after the wiper switch is set to off, and back to on.
To protect the wiper motor from overheating, the wipers may slow down when the windshield is dry for a long period. If a period of dry operation, or little moisture, exceeds 10 minutes, the wipers may switch to intermittent operation, and remain there. When moisture is again detected on the windshield, wiper operation will return to the operator-selected speed.
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.
To check a fuse, look at the silver-coloured 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.
To identify and check fuses, circuit breakers, and relays,
Engine Compartment Fuse Block
The underhood fuse block is on the driver’s side of the engine compartment.
Lift the fuse block cover to access the fuses.
The vehicle may not be equipped with all of the fuses and relays shown.
Caution
Spilling liquid on any electrical component of the vehicle may damage it. Always keep the covers on any electrical component.
Number Usage
- 1 –
- 2 –
- *3 Passenger motorized safety belt
- 4 –
- 5 –
- 6 Driver power seat
- 7 –
- *8 Headlamp washer relay
- 9 –
- 10 –
- 11 –
- 12 –
- 13 Passenger power seat
- 14 –
- 15 Passive Entry/ Passive start/Front wiper
- 16 –
- *17 Headlamp washer
- 18 –
- 19 Antilock brake system pump
- 20 Antilock brake system valve
- *21 –
- 22 Driver motorized safety belt
- 23 Wiper control relay
- 24 Wiper speed relay
- 25 Engine control module relay
- *26 –
- 27 Heated seat 2
- 28 Reverse lock-out
- *29 AFS AHL/ Pedestrian protection
- 30 –
- 31 Passenger window switch
- 32 –
- 33 Sunroof
- 34 Wiper–front
- 35 Steering column lock
- 36 RBEC/ignition
- 37 MIL/Ignition
- 38 PT fuse
- 39 O2 sensor/ Emissions
- 40 Ignition coil/Injectors
- 41 Ignition coil/Injectors
- *42 Engine control module
- 43 –
- 44 –
- 45 WASH
- 46 –
- 47 Front washer relay
- 48 Instrument panel/ Body/Ignition
- 49 FSCM/Ignition
- *50 Heated steering wheel
- *51 Engine control module/Ignition
- *52 TCM/Ignition
- 53 Coolant pump
- *54 Coolant pump relay
- 55 Engine control module
- *56 TCM
- 57 Headlamp low relay
- 58 Headlamp high relay
- 59 Run/Crank relay
- 60 Starter 2 relay
- *61 Vacuum pump relay
- 62 Starter relay
- *63 A/C control relay
- *64 Automatic headlamp leveling
- *65 Left HID headlamp
- 66 Right HID headlamp
- 67 Left/Right high-beam headlamp
- 68 Aeroshutter
- 69 Horn
- 70 Horn relay
- 71 Coolant fan
- 72 Starter 2
- *73 Brake vacuum pump
- 74 Starter
- 75 A/C clutch
- 76 –
* Optional
Instrument Panel Fuse Block
The instrument panel fuse block is behind the driver-side instrument panel storage compartment.
To access the fuses, remove the end panel by gently prying with a plastic tool near each clip, beginning at the point shown.
To install the end cover, insert the tabs on the back of the cover into the slots in the instrument panel at the points shown. Align the clips with the slots in the instrument panel, and press the cover into
place.
The vehicle may not be equipped with all of the fuses and relays shown.
Mini Fuses Usage
- 2 Motorized cupholder
- 3 Electric steering column lock
- 4 Not used
- 5 HVAC control
- 6 Tilt/Telescoping steering column
- 8 Data link connect
- 9 Glove box release
- 10 Shunt
- 11 Body Control Module 1
- 12 Body Control Module 5
- 13 Not used
- 14 Not used
- 15 Not used
- 16 Not used
- 17 Not used
- 18 Not used
- 19 Auxiliary power outlet
- 20 Lighter
- 21 Wireless charger
- 22 Sensing diagnostic module/ Automatic occupant sensing
- 23 Radio/DVD/HVAC control
- 24 Display
- 25 Heated steering wheel
- 26 Wireless charger
- 27 Steering wheel switches
- 28 Not used
- 29 Visor
- 30 Not used
- 31 Not used
- 32 Retained accessory power
- 33 Front HVAC blower
- CB1 Accessory power outlet power
- CB7 Not used
- K10 Retained accessory
- power/Accessory
Mini Fuses Usage
- K605 Logistics
- K644 Retained accessory
- power/Glove box release
Rear Compartment FuseBlock
The rear compartment fuse block is behind a cover on the passenger side of the rear compartment.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Number Usage
- *1 RR driver control module/DC DC transformer
- 2 Left window
- 3 Body Control Module 8
- *4 A/C inverter
- 5 Passive entry passive start/ Battery 1
- 6 Body Control Module 4
- 7 Heated mirror
- 8 Amplifier
- 9 Rear defogger
- 10 Glass break
- *11 Trailer connector
- 12 OnStar (if equipped)
- 13 Right window
- 14 Electric parking brake
- 15 –
- 16 Trunk release
- *17 RUN relay
- *18 Logistics relay
- *19 –
- 20 Rear window defogger relay
- 21 Mirror window module
- 22 –
- 23 Canister vent
- 24 Body control module 2
- *25 Rear vision camera
- *26 Front ventilated seats
- *27 SBZA/LDW/EOCM
- *28 Trailer/Sunshade
- *29 Rear heated seats
- *30 Semi-active damping system
- *31 Traction control module/RR control drive module
- 32 Theft module/ Universal garage door opener/Rain sensor
- *33 UPA
- *34 Radio/DVD
- 35 –
- *36 Trailer
- 37 Fuel pump/Fuel system control
module - 38 –
- 39 –
- 40 –
- 41 –
- *42 Memory seat module
- 43 Body control module 3
- 44 –
- 45 Battery regulated voltage control
- 46 Engine control module/Battery
- 47 –
- 48 –
- *49 Trailer module
- 50 Door lock security
- 51 Rear closure release
- 52 –
- 53 –
- 54 Door lock security
- 55 –
- *56 Fuel door
* Optional
Replacing Fuses
Materials Needed:
- Fuse Puller/Needle-Nose Pliers: To safely remove the fuses.
- Fuse Replacement: Make sure you have the correct replacement fuses. The fuse box cover should have a diagram indicating the amperage and function of each fuse.
Steps:
-
Locate the Fuse Box:
- The fuse box in the Cadillac CTS 2016 is typically located in the driver’s side footwell, near the kick panel.
- There may also be a fuse box under the hood in the engine compartment. Refer to your owner’s manual for precise locations.
-
Identify the Fuse:
- Open the fuse box cover. There should be a diagram on the inside of the cover or in the owner’s manual indicating which fuse corresponds to which component.
- Use a flashlight if needed for better visibility.
-
Turn Off the Vehicle:
- Before replacing any fuses, ensure the vehicle is turned off to avoid electrical hazards.
-
Use the Fuse Puller or Pliers:
- Use the fuse puller tool or needle-nose pliers to grasp the fuse you want to replace.
- Apply even pressure and pull the fuse straight out. If you’re using pliers, be gentle to avoid damaging the fuse or the fuse box.
-
Inspect the Fuse:
- Check the fuse for signs of a blown fuse, such as a broken filament or a discoloured glass/plastic body. If it’s damaged, replace it with a new fuse of the same amperage.
-
Insert the New Fuse:
- Take the new fuse and carefully insert it into the empty slot. Make sure it fits snugly.
-
Repeat if Necessary:
- If you have multiple fuses to replace, repeat the process for each one.
-
Close the Fuse Box:
- Once you have replaced all the necessary fuses, close the fuse box cover securely.
-
Test the Components:
- Turn on the vehicle and test the components associated with the fuses you replaced to ensure they are working correctly.
- Turn on the vehicle and test the components associated with the fuses you replaced to ensure they are working correctly.
FAQs
Blown fuses cause various systems in your Cadillac CTS 2016 to become less functional by disrupting the electrical flow. Replacing them is essential to getting back to normal functionality.
Usually found inside the cabin or in the engine compartment, the fuse box in your Cadillac CTS 2016 can be found there. For exact locations, consult your owner’s manual.
Simple tools like needle nose pliers or a fuse puller come in handy when replacing a fuse in your Cadillac CTS 2016.
No, to avoid electrical problems, you must use the correct amperage fuse as indicated in your Cadillac CTS 2016 fuse diagram.
Check and replace fuses regularly; it’s a good idea to do this during regular maintenance.
You can look up the Cadillac CTS 2016 Fuse Diagram online or get help from your dealership.
Yes, if you ignore a blown fuse, your Cadillac CTS 2016 may experience more serious electrical issues.
Check the fuse for a broken filament or check continuity with a multimeter.
Certain Cadillac CTS 2016 models include extra fuses; see your owner’s manual or fuse box for specifics.
It’s a reasonably easy task to replace a fuse in your Cadillac CTS 2016 on your own.
This could point to a more serious electrical problem, so it’s best to get help from a professional to diagnose it.
Although some warmth is normal, fuses that feel extremely hot could be signs of an electrical issue, so more research is advised.
For compatibility and safety reasons, it is advised to use OEM or high-quality replacement fuses with your Cadillac CTS 2016.
Replacing a blown fuse in your Cadillac CTS 2016 is a quick process that typically takes only a few minutes.
If issues continue, refer to the Cadillac CTS 2016 Fuse Diagram for appropriate troubleshooting or contact a professional for a comprehensive diagnosis.
Useful Links
View Full PDF: 2016 Cadillac CTS Owner’s Manual|Auto User Guide
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