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Fuse box diagram (fuse layout), location and assignment of fuses and relays Cadillac XT5 (2017, 2018).
Checking and Replacing Fuses
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-colored 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.
Caution
- Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. The use of an oversized fuse or circuit breaker can result in a vehicle fire.
- Do not pull the engine compartment fuse block lever, since it is intended only for service purposes. If pulled, vehicle malfunction may occur.
- Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
- Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- Do not repair fuses and never replace a blown fuse with one that has a higher amp rating. This can cause damage to the electrical system and fire.
- Never replace a broken fuse with anything other than a new fuse. Use always an intact fuse of the same color.
- If a fuse blows again contact authorized services.
Engine Compartment Fuse Box
The underhood fuse block is in the engine compartment, on the driver side of the vehicle. To remove the fuse block cover, press the clips on the cover and lift it straight up.
| № | Fused function |
|---|---|
| F1 | ABS pump |
| F2 | Starter 1 |
| F3 | DC DC transformer 1 |
| F4 | - |
| F5 | - |
| F6 | - |
| F7 | DC DC transformer 2 |
| F8 | Starter 3 |
| F9 | - |
| F10 | - |
| F11 | - |
| F12 | Front wiper |
| F13 | Starter 2 |
| F14 | LED/Automatic headlamp leveling (if equipped) |
| F15 | Rear wiper 1 |
| F16 | - |
| F17 | - |
| F18 | Automatic headlamp leveling (if equipped) |
| F19 | - |
| F20 | - |
| F21 | - |
| F22 | Electronic brake control module |
| F23 | Parking/Trailer lamps |
| F24 | Right trailer stoplamp/Turnlamp |
| F25 | Steering column lock |
| F26 | - |
| F27 | Left trailer stoplamp/ Turnlamp |
| F28 | - |
| F29 | - |
| F30 | Washer pump |
| F31 | Right low-beam headlamp |
| F32 | Left low-beam headlamp |
| F33 | Fog lamps |
| F34 | Horn |
| F35 | - |
| F36 | Left high-beam headlamp |
| F37 | Right high-beam headlamp |
| F38 | Automatic headlamp leveling (if equipped) |
| F39 | Transmission control module 1 |
| F40 | Left rear bus electrical center/ Ignition |
| F41 | Instrument cluster |
| F42 | HVAC |
| F43 | Head-up display |
| F44 | - |
| F45 | - |
| F46 | - |
| F47 | - |
| F48 | Rear wiper 2 |
| F49 | Interior rearview mirror/Trailer |
| F50 | Fuel system control module |
| F51 | Fleated steering wheel |
| F52 | A/C clutch |
| F53 | Transmission range control module |
| F54 | Coolant pump |
| F55 | - |
| F56 | - |
| F57 | Engine control module/lgnition |
| F58 | Transmission control module/lgnition |
| F59 | Engine control module battery |
| F60 | Transmission control module 2 |
| F61 | O2 sensor 1/ Aeroshutter |
| F62 | Engine control module-odd |
| F63 | O2 sensor 2 |
| F64 | Engine control module-even |
| F65 | Engine control module powertrain 1 |
| F66 | Engine control module powertrain 2 |
| F67 | Powertrain TRCM |
| F68 | - |
| F69 | - |
| F70 | - |
| F71 | - |
| F72 | - |
| F73 | - |
| F74 | - |
| F75 | - |
| F76 | - |
| F77 | - |
| Relay | |
| K1 | Starter 1 |
| K2 | Run/Crank |
| K3 | Starter 3 |
| K4 | LED/Automatic headlamps (if equipped) |
| K5 | - |
| K6 | Coolant pump |
| K7 | Engine control module |
| K8 | A/C |
| K9 | - |
| K10 | Starter 2 |
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Instrument Panel Fuse Box
The instrument panel fuse block is in the center console between the driver and passenger seats. To access the fuses, open the fuse panel door, or remove the panel from the passenger side by pulling it out. To reinstall the door, push the door back into its original location.
| № | Fused function |
|---|---|
| F1 | Body control module 6 |
| F2 | Diagnostic link |
| F3 | Electric steering column lock |
| F4 | - |
| F5 | Logistics |
| F6 | HVAC |
| F7 | Body control module 3 |
| F8 | Head-up display |
| F9 | Right front heated seat |
| F10 | Airbag |
| F11 | Electronic transmission range system |
| F12 | Amplifier |
| F13 | Body control module 7 |
| F14 | Left front heated seat |
| F15 | Instrument panel switch bank |
| F16 | Sunroof |
| F17 | Body control module 1 |
| F18 | Instrument panel cluster |
| F19 | - |
| F20 | Rear seat entertainment |
| F21 | Body control module 4 |
| F22 | Infotainment |
| F23 | Body control module 2 |
| F24 | USB charger/ Wireless charging module |
| F25 | Ultrasonic parking aid |
| F26 | CIM |
| F27 | - |
| F28 | HVAC Display |
| F29 | Radio |
| F30 | Steering wheel controls |
| F31 | Front blower |
| F32 | AC DC inverter |
| F33 | Driver power seat |
| F34 | Passenger power seat |
| F35 | Battery IEC 1 feed |
| F36 | Electric power steering |
| F37 | Rear seat entertainment/USB charge/Wireless charging module |
| F38 | Body control module 8 |
| F39 | - |
| F40 | - |
| F41 | - |
| F42 | Auxiliary power outlet/Lighter |
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Rear Compartment Fuse Box
The fuse block is in the cargo area, on the driver side of the vehicle behind the lower trim panel. To open, turn the latch with a flat-bladed tool and pull the trim panel from the edges to fold it down. The label for this fuse block is in the spare tire area, on the foam under the cargo floor.
| № | Fused function |
|---|---|
| F1 | - |
| F2 | Trailer battery 1 |
| F3 | Driver safety belt |
| F4 | Rear blower |
| F5 | Rear drive control |
| F6 | Passenger safety belt |
| F7 | Right window |
| F8 | Rear defogger |
| F9 | Left window |
| F10 | - |
| F11 | Trailer reverse |
| F12 | - |
| F13 | - |
| F14 | - |
| F15 | - |
| F16 | - |
| F17 | Camera |
| F18 | Trailer module |
| F19 | Ventilated seats |
| F20 | - |
| F21 | Trailer connector |
| F22 | - |
| F23 | - |
| F24 | Passenger window switch |
| F25 | - |
| F26 | Trailer brake |
| F27 | Driver ventilated seat/Lumbar |
| F28 | Passive entry/ Passive start |
| F29 | - |
| F30 | Canister vent |
| F31 | - |
| F32 | Heated mirror |
| F33 | - |
| F34 | Logic mode |
| F35 | Fuel system control module |
| F36 | Passenger ventilated seat/Lumbar |
| F37 | - |
| F38 | Window module |
| F39 | Rear closure |
| F40 | Memory seat module |
| F41 | Automatic occupancy sensor |
| F42 | Trailer battery 2 |
| F43 | - |
| F44 | - |
| F45 | Liftgate |
| F46 | Rear heated seats |
| F47 | - |
| F48 | Glass breakage |
| F49 | - |
| F50 | - |
| F51 | - |
| F52 | Semi-active dampen system module |
| F53 | Rear parking aid module |
| F54 | External object calculating |
| F55 | - |
| F56 | Universal garage door opener/Rain sensor |
| F57 | Theft deterrent |
| CB1 | - |
| CB2 | - |
| CB3 | APO rear |
| Relay | |
| K1 | - |
| K2 | - |
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