Cadillac CTS mk3 (Third Generation; 2014 – 2015) – fuse box diagram

Cadillac CTS mk3 (Third Generation; 2014 – 2015) – fuse box diagram

Year of production: 2014, 2015

Engine compartment fuse block

The underhood fuse block is on the passenger side of the engine compartment.

Cadillac CTS mk3 - fuse box - engine comparment
Cadillac CTS mk3 – fuse box – engine comparment
Fuse Usage
1 Not Used
2 Not Used
3* Not Used
4 Body Control Module 6
5 Not Used
6 Driver Power Seat
7 Not Used
8* Headlamp Washer Relay
9 Not Used
10 Not Used
11 Not Used
12 Not Used
13 Passenger Power Seat
14 Body Control Module 5
15 Front Wiper
16 Not Used
17* Headlamp Washer
18 Not Used
19 Antilock Brake System Pump
20 Antilock Brake System Valve
21* AIR Pump
22 MSB Driver
23 Wiper Control Relay
24 Wiper Speed Relay
25 Engine Control Module Relay
26* AIR Pump Relay
27 Spare/Heated Seat 2
28 Body Control Module 1/Spare
29* AFS AHL/Pedestrian Protection
30 Passenger Window Switch
31 Body Control Module 7
32 Sunroof
33 Not Used
34 AOS Display/MIL Ignition
35 Rear Electrical Center Ignition
36 Spare PT Fuse
37 Oxygen Sensor
38 Ignition Coils/Injectors
39 Ignition Coils/Injectors/Spare
40 Engine Control Module
41 Fuel Heater
42* AIR Solenoid Relay
43 Washer
44 Not Used
45 Front Washer Relay
46 Not Used
47 Instrument Panel Body Ignition
48 Fuel System Control Module Ignition
49 Heated Steering Wheel
50* Steering Column Lock
51* Coolant Pump
52* Coolant Pump Relay
53 Air Conditioning Compressor Clutch
54* AIR Solenoid
55 Transmission Control Module/Spare
56* Headlamp Low Relay
57 Headlamp High Relay
58 Starter
59 Starter Relay
60 Run/Crank Relay
61* Vacuum Pump Relay
62 Air Conditioning Control Relay
63* Adaptive Headlamp Leveling
64* Left High Intensity Discharge Headlamp
65* Right High Intensity Discharge Headlamp
66 Headlamp High Left/Right
67 Horn
68 Horn Relay
69 Cooling Fan
70 Aero Shutter
71 Transmission Control Module Ignition
72 Engine Control Module Ignition
73* Brake Vacuum Pump
74 Not Used
* Optional

 

Instrument Panel Fuse Block

The instrument panel fuse block is in the end of the driver side of the instrument panel.

Cadillac CTS mk3 - fuse box - instrument panel
Cadillac CTS mk3 – fuse box – instrument panel
Mini Fuses Usage
2 Motorized Cupholder
3 Electric Steering Column Lock
4 Data Link Connector
5 Heater, Ventilation, and Air Conditioning Control
6 Tilt and Telescoping Steering Column
8 Spare
9 Glove Box Release
10 Shunt
11 Body Control Module 1
12 Body Control Module 5
13 Spare
14 Spare
15 Spare
16 Spare
17 Spare
18 Spare
19 Spare
20 Spare
21 Spare
22 Sensing Diagnostic Module/Automatic Occupant Sensing
23 Radio/DVD/Heater, Ventilation, and Air Conditioning
24 Display
25 Heated Steering Wheel
26 Wireless Charger
27 Steering Wheel Switches
28 Spare
29 Spare
30 Spare

 

J Case Fuses Usage
31 Spare
32 Spare
33 Front Heater, Ventilation, and Air Conditioning Blower

 

Circuit Breakers Usage
CB1 Retained Accessory Power/Accessory Power Outlet Power
CB7 Spare

 

Relays Usage
K10 Retained Accessory Power/Accessory
K605 Logistics
K644 Glove Box Release

Rear Compartment Fuse Block

The rear compartment fuse block is behind a cover on the driver side of the rear compartment.
The vehicle may not be equipped with all of the fuses, relays, and features shown.

Cadillac CTS mk3 - fuse box - rear comparment
Cadillac CTS mk3 – fuse box – rear comparment
Number Usage
1* Electronic Limited Slip Differential/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 Window Defogger
10 Glass Break
11* Trailer Connector
12 OnStar (If Equipped)
13 Right Window
14 Electric Parking Brake
15 Not Used
16 Trunk Release
17* Run Relay
18* Logistics Relay
19* Logistics Fuse
20 Rear Window Defogger Relay
21 Mirror Window Module
22 Pedestrian Protection
23 Canister Vent
24 Pedestrian Protection
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* Transfer Case Control Module/Electronic Limited Slip Differential
32 Theft Module/Universal Garage Door Opener/Rain Sensor
33* UPA
34* Radio/DVD
35 Not Used
36* Trailer
37 Fuel Pump/Fuel System Control Module
38 Not Used
39 Not Used
40 Not Used
41 Not Used
42* Memory Seat Module
43 Body Control Module 3
44 Not Used
45 Battery Regulated Voltage Control
46 Engine Control Module Battery
47 Not Used
48 Not Used
49* Trailer Module
50 Door Lock Security
51 Rear Closure Release
52 Not Used
53 Not Used
54 Door Lock Security
55 Not Used
56* Fuel Door
* Optional

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.