The Cadillac CT5 mid-size luxury sedan is available from 2020 to present. In this article you will find the Cadillac CT5 2020, 2021 and 2022 fuse box outline, get information on the location of the fuse boxes inside the vehicle and learn about the allocation of each fuse (fuse layout) and relay.
The cigar lighter (socket) fuses in the Cadillac CT5 are the CB1 and CB2 circuit breakers in the instrument panel fuse box.
Fuse box location
Passenger compartment
The fuse box is located on the driver side of the instrument panel.
To access, remove the end cover by gently prying with a plastic tool near each clip, beginning at the point shown.
To install the cover, insert the tabs on the back of the cover into the slots in the instrument panel. Align the clips with the slots in the instrument panel, and press the cover into place.
Engine compartment
Lift the cover to access the fuses.
Luggage compartment
The rear compartment fuse block is behind a cover on the driver’s side of the rear compartment.
Fuse box diagrams
Passenger compartment
Assignment of the fuses in the Passenger compartment (2020, 2021, 2022)
| № | Description |
|---|---|
| 1 | — |
| 2 | HVAC blower |
| 3 | — |
| 4 | — |
| 5 | 2020-2021: Theft deterrent/ Universal garage door opener 2022: Theft Deterrent/ Universal Garage Door Opener/ Overhead Console/ Rain Sensor |
| 6 | — |
| 7 | Air quality ionizer |
| 8 | Heated steering wheel |
| 9 | — |
| 10 | Electronic steering column lock 1 |
| 11 | — |
| 12 | — |
| 13 | — |
| 14 | — |
| 15 | — |
| 16 | — |
| 17 | — |
| 18 | 2020-2021: Display/ Infotainment/ USB 2022: Display/ Infotainment/ USB/ Multi-function Control Module |
| 19 | 2020-2021: Airbag/ Automatic occupant sensing/ Data link connection/ Wireless charging module 2022: Sensing and Diagnostic Module/ Automatic Occupant Sensing/ Data Link Connection/ Wireless Charging Module/ Virtual Key Module |
| 20 | Power steering column module/ Electronic steering column lock 2 |
| 21 | 2022: Driver Monitor System/ Performance Data Recorder |
| 22 | — |
| 23 | — |
| 24 | — |
| 25 | USB |
| 26 | — |
| 27 | — |
| 28 | — |
| 29 | — |
| 30 | — |
| 31 | Headlamp level |
| 32 | — |
| 33 | Body ignition/IP ignition |
| 34 | Exhaust valve |
| 35 | Transmission control module ignition/ Engine control module ignition/ Shift ignition/ Brake ignition |
| 36 | Shift module |
| 37 | Body control module 1/ Electronic park brake switch |
| 38 | Center stack module |
| 39 | Steering wheel controls |
| 40 | Body control module 2 |
| 41 | Body control module 3 |
| 42 | Body control module 4 |
| CB1 | Auxiliary power outlet 1 (Circuit Breaker) |
| CB2 | Auxiliary power outlet 2 (Circuit Breaker) |
| Relays | |
| 1 | Run after park/ Accessory |
| 2 | Run crank |
| 3 | — |
| 4 | — |
| 5 | — |
Engine compartment
Assignment of the fuses and relays in the engine compartment (2020, 2021, 2022)
| № | Description |
|---|---|
| 1 | Long range radar front sensor |
| 2 | Park/Daytime running lamps |
| 3 | Exterior lighting module 4 |
| 4 | Exterior lighting module 7 |
| 5 | Headlamp level |
| 6 | — |
| 7 | Electronic brake control module |
| 8 | Washer pump |
| 9 | — |
| 10 | — |
| 11 | — |
| 12 | Horn |
| 13 | Front wiper |
| 14 | Exterior lighting module 6 |
| 15 | Exterior lighting module 1 |
| 16 | Exterior lighting module 5 |
| 17 | Exterior lighting module 3 |
| 18 | Aero shutter |
| 19 | — |
| 20 | — |
| 21 | Virtual key system/ Power sounder module |
| 22 | 2022: Engine Control Module Battery |
| 23 | Transmission control module |
| 24 | Active engine mount |
| 25 | — |
| 26 | Engine control module |
| 27 | Injectors/Ignition 2 |
| 28 | Charged air cooler |
| 29 | 2020-2021: Transmission coolant pump 2022: Transmission Aux Oil Pump/ Transmission Reverse Lock Out |
| 30 | Injectors/Ignition 1 |
| 31 | Emissions 1 |
| 32 | Emissions 2 |
| 33 | Starter solenoid |
| 34 | — |
| 35 | 2020-2021: Coolant pump |
| 36 | Starter pinion |
| 37 | AC clutch |
| 38 | — |
| 39 | — |
| 40 | — |
| 41 | — |
| 42 | Water pump |
| 43 | — |
| 44 | — |
| Relays | |
| 47 | — |
| 48 | Front wiper speed |
| 49 | Front wiper control |
| 51 | — |
| 52 | Engine control module |
| 53 | Starter solenoid |
| 54 | Starter pinion |
| 55 | — |
| 57 | AC clutch |
| 58 | — |
Luggage compartment
Assignment of the fuses and relays in the Rear compartment (2020, 2021, 2022)
| № | Description |
|---|---|
| 1 | Remote function actuator |
| 2 | 2020-2021: Engine control module |
| 3 | Driver heated seat |
| 4 | Fuel tank zone module |
| 5 | — |
| 6 | — |
| 7 | — |
| 8 | — |
| 9 | — |
| 10 | Motor seat belt passenger |
| 11 | Canister vent solenoid |
| 12 | Sunroof |
| 13 | — |
| 14 | — |
| 15 | Passenger heated seat |
| 16 | — |
| 17 | Electronic suspension control |
| 18 | — |
| 19 | Motor seat belt driver |
| 20 | Rear defog |
| 21 | DC to DC transformer 2 |
| 22 | Driver Power Window/ Door Handle Switch |
| 23 | 2020-2021: External object calculating module/ Front camera module 2022: External Object Calculating Module/ Front Camera Module/ High Definition Localization Module/ Short Range Radar |
| 24 | Passenger Power Window/ Door Handle Switch |
| 25 | — |
| 26 | 2020-2021: Trailer 2022: Amplifier (V-Series Blackwing) |
| 27 | Rear drive control module |
| 28 | — |
| 29 | — |
| 30 | — |
| 31 | DC to DC transformer 1 |
| 32 | Transfer case electronic control |
| 33 | Central gateway module – side blind zone alert |
| 34 | Video processing module |
| 35 | Hands free closure release |
| 36 | Exterior lighting module 2 |
| 37 | Passenger memory seat module |
| 38 | 2020-2021: Trailer 2 |
| 39 | Right front/Right rear window |
| 40 | — |
| 41 | — |
| 42 | Amplifier |
| 43 | Park assist module |
| 44 | Driver memory seat module |
| 45 | OnStar |
| 46 | — |
| 47 | — |
| 48 | — |
| 49 | 2020-2021: Trailer |
| 50 | Driver seat |
| 51 | Left front/Left rear window |
| 52 | Passenger seat |
| Relays | |
| 53 | — |
| 54 | — |
| 55 | Run |
