Cadillac CTS 2018 Fuse Box Info
Fuse box location:
The instrument panel fuse box is in the end of the driver side of the instrument panel.
Engine compartment fuse box:
Luggage compartment fuse box:
The rear compartment fuse box is behind a cover on the driver side of the rear compartment.
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Functions |
| 2 | Cupholder motor |
| 3 | Electric Steering Column Lock |
| 4 | - |
| 5 | - |
| 6 | Tilt and telescopic steering column |
| 8 | Data link connector |
| 9 | Glove Box Release |
| 10 | Shunt |
| 11 | Body Control Module 1 |
| 12 | Body Control Module 5 |
| 13 | Body control module 6 |
| 14 | - |
| 15 | Body control module 7 |
| 16 | Transmission control module |
| 17 | - |
| 18 | - |
| 19 | Auxiliary power outlet |
| 20 | Lighter |
| 21 | Wireless charger |
| 22 | Sensing Diagnostic Module/Automatic Occupant Sensing |
| 23 | Radio/DVD/Heating, ventilation/Air conditioning control |
| 24 | Display |
| 25 | Heated Steering Wheel |
| 26 | Wireless Charger |
| 27 | Steering Wheel Controls |
| 28 | - |
| 29 | Visor vanity lamp |
| 30 | - |
| 31 | Retained accessory power/Accessory |
| 32 | - |
| 33 | Front heating, ventilation/Air conditioning control blower |
| CB1 | Auxiliary power outlet |
| CB7 | - |
| K10 | Retained accessory power/Accessory |
| K605 | Logistics |
| K644 | Retained accessory power/Accessory / Glovebox release |
Engine compartment fuse box:
| Fuse/Relay N° | Functions |
| 1 | - |
| 2 | - |
| 3 | Passenger Motorized Seat Belt |
| 4 | - |
| 5 | - |
| 6 | Driver Power Seat |
| 7 | - |
| 8 | Headlamp Washer |
| 9 | - |
| 10 | - |
| 11 | - |
| 12 | - |
| 13 | Passenger Power Seat |
| 14 | - |
| 15 | Passive entry/Passive start |
| 16 | - |
| 17 | Headlamp Washer |
| 18 | - |
| 19 | ABS pump |
| 20 | ABS valve |
| 21 | - |
| 22 | Driver Motorized Seat Belt |
| 23 | Wiper Control Relay |
| 24 | Wiper Speed Relay |
| 25 | Engine Control Module Relay |
| 26 | - |
| 27 | –/Heated seat 2 |
| 28 | –/Reverse lock out |
| 29 | Adaptive forward lighting, Automatic headlamp leveling/ Pedestrian protection |
| 30 | - |
| 31 | Passenger window switch |
| 32 | - |
| 33 | Sunroof |
| 34 | Front wiper |
| 35 | Steering column lock |
| 36 | Rear bussed electrical center/Ignition |
| 37 | –/Malfunction Indicator Lamp/ Ignition |
| 38 | Aeroshutter |
| 39 | O2 sensor/Emissions |
| 40 | Ignition coil even/O2 sensor |
| 41 | Ignition coil odd |
| 42 | Engine control module |
| 43 | - |
| 44 | - |
| 45 | Washer |
| 46 | Rear washer Relay |
| 47 | Front washer Relay |
| 48 | Instrument panel/ Body/Ignition |
| 49 | Fuel system control module/Ignition |
| 50 | Heated steering wheel |
| 51 | Engine control module/Ignition |
| 52 | Transmission control module/Ignition |
| 53 | Coolant pump |
| 54 | Coolant pump Relay |
| 55 | - |
| 56 | Transmission control module |
| 57 | Low-beam headlamp Relay |
| 58 | High-beam headlamp Relay |
| 59 | Run/Crank Relay |
| 60 | Starter 2 Relay |
| 61 | Vacuum Pump Relay |
| 62 | Starter 1 Relay |
| 63 | Air conditioning control Relay |
| 64 | Adaptive headlamp leveling |
| 65 | Left HID headlamp |
| 66 | Right HID headlamp |
| 67 | Left/Right high-beam headlamp |
| 68 | Headlamp leveling motor |
| 69 | Horn |
| 70 | Horn Relay |
| 71 | Coolant fan |
| 72 | Starter 2 |
| 73 | Brake vacuum pump |
| 74 | Starter 1 |
| 75 | Air conditioning clutch |
| 76 | - |
Luggage compartment fuse box:
| Fuse/Relay N° | Functions |
| 1 | Rear driver control module/DC DC transformer |
| 2 | Left Window |
| 3 | Body Control Module 8 |
| 4 | Alternate current inverter |
| 5 | Passive entry/Passive start/ Battery 1 |
| 6 | Body Control Module 4 |
| 7 | Heated Mirrors |
| 8 | Amplifier |
| 9 | Rear window defogger |
| 10 | Glass Break |
| 11 | Trailer Connector |
| 12 | OnStar (If Equipped) |
| 13 | Right Window |
| 14 | Electric Parking Brake |
| 15 | - |
| 16 | Trunk Release |
| 17 | Trailer Relay |
| 18 | Logistics Relay |
| 19 | Logistics |
| 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 | Side blind zone alert/Lane departure warning/External object calculating module |
| 28 | Trailer/Sunshade |
| 29 | Rear Heated Seats |
| 30 | Semi-Active Damping System |
| 31 | Transfer case control module/Rear control drive module |
| 32 | Theft Module/ Universal Garage Door Opener/Rain Sensor |
| 33 | Ultrasonic parking assist |
| 34 | Radio/DVD |
| 35 | – /Exhaust valve (V-series) |
| 36 | Trailer |
| 37 | Fuel system control module |
| 38 | Fuel pump prime/Exhaust valve (V-series |
| 39 | - |
| 40 | Run crank 2 (V-series) |
| 41 | Fuel pump prime/ Run crank 2 |
| 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 | Child door lock security |
| 51 | Rear Closure |
| 52 | Rear Closure 2 |
| 53 | - |
| 54 | Door Lock Security |
| 55 | - |
| 56 | Fuel Door |
