Cadillac CTS (2017) – fuse box diagram
Year of production: 2016
Engine compartment fuse block
The underhood fuse block is on the passenger side of the engine compartment.
| Fuse | Usage |
| 1 | — |
| 2 | — |
| 3* | Passenger motorized safety belt |
| 4 | — |
| 5 | — |
| 6 | Driver Power Seat |
| 7 | — |
| 9 | — |
| 10 | — |
| 11 | — |
| 12 | — |
| 13 | Passenger Power Seat |
| 14 | — |
| 15 | Passive entry/Passive start/Front wipers |
| 16 | — |
| 17* | Headlamp Washer |
| 18 | — |
| 19 | ABS pump |
| 20 | ABS valve |
| 21* | — |
| 22 | Driver motorized safety belt |
| 26* | — |
| 27 | –/Heated Seat 2 |
| 28 | –/Reverse lock out |
| 29* | AFS AHL/Pedestrian protection |
| 30 | — |
| 31 | Passenger window switch |
| 32 | — |
| 33 | Sunroof |
| 34 | Front wiper |
| 35 | Steering column lock |
| 36 | RBEC/Ignition |
| 37 | –/MIL/Ignition |
| 38 | Aeroshutter |
| 39 | O2 sensor/Emissions |
| 40 | Ignition coil/Injectors |
| 41 | –/Ignition coil/Injectors |
| 42* | Engine control module |
| 43 | — |
| 44 | — |
| 45 | 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 |
| 55 | — |
| 56* | TCM/– |
| 64* | Automatic headlamp leveling |
| 65* | Left HID headlamp |
| 66 | Right HID headlamp |
| 67 | High-beam headlamps |
| 68 | Headlamp leveling motor |
| 69 | Horn |
| 71 | Coolant fan |
| 72 | Starter 2 |
| 73* | Brake vacuum pump |
| 74 | Starter |
| 75 | A/C clutch |
| 76 | — |
| * Optional | |
| Relays | Usage |
| 8* | Headlamp washer |
| 23 | Wiper control relay |
| 24 | Wiper speed |
| 25 | Engine control module |
| 46 | Rear washer |
| 47 | Front washer |
| 54* | Coolant pump |
| 57 | Low-beam headlamp |
| 58 | High-beam headlamp |
| 59 | Run/Crank |
| 60 | Starter 2 |
| 61* | Vacuum pump |
| 62 | Starter |
| 63* | A/C control |
| 70 | Horn |
| * Optional | |
Instrument Panel Fuse Block
The instrument panel fuse block is in the end of the driver side of the instrument panel.
| Fuses | Usage |
| 2 | Motorized cupholder |
| 3 | Electric steering column lock |
| 4 | — |
| 5 | HVAC control |
| 6 | Tilt/Telescoping 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/HVAC control |
| 24 | Display |
| 25 | Heated steering wheel |
| 26 | Wireless Charger |
| 27 | Steering wheel switches |
| 28 | — |
| 29 | Visior |
| 30 | — |
| 31 | — |
| 32 | Retained accessory power |
| 33 | Front HVAC blower |
| CB1 | Accessory power outlet |
| CB7 | — |
| K10 | Retained accessory power |
| K605 | Logistics |
| K644 | Retained accessory power/Glove box release |
Rear Compartment Fuse Block
The rear compartment fuse block is behind a cover on the driver side of the rear compartment.
| Number | Usage |
| 1* | Rear 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 Mirrors |
| 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/Rear control drive module |
| 32 | Theft deterrent module/Universal garage door opener/Rain sensor |
| 33* | UPA |
| 34* | Radio/DVD |
| 35 | Exhaust valve |
| 36* | Trailer |
| 37 | Fuel Pump/Fuel System Control Module |
| 38 | Fuel pump |
| 39 | — |
| 40 | Exhaust valve |
| 41 | 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 | Door Lock Security |
| 51 | Rear Closure Release |
| 52 | Rear closure |
| 53 | — |
| 54 | Door Lock Security |
| 55 | — |
| 56* | Fuel Door |
| * Optional | |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.