Cadillac XT4 (2019-2020..) fuses and relays


The subcompact luxury crossover SUV Cadillac XT4 is available from 2019 to the present. In this article, you will find fuse box diagrams of Cadillac XT4 2019 and 2020, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Cadillac XT4 2019-2020…


Cigar lighter (power outlet) fuses in the Cadillac XT4 is the fuses F5 (Auxiliary power outlet – cargo), F37 (Auxiliary power outlet – front), F43 (Auxiliary power outlet – console (circuit breaker)) and F44 (Auxiliary power outlet – console) in the Instrument panel fuse box.

Fuse box location

Passenger compartment

The fuse box is located on the driver’s side of the instrument panel behind the cover.The location of the fuses in the passenger compartment: Cadillac XT4 (2019)

To access, remove the panel, starting at the top. Once clips are disengaged, the tabs along the bottom of the door can be disengaged from the instrument panel to remove the door.

To reinstall the door, place the bottom tabs into the slots, and rotate the door into position, engaging the clips.

Engine compartment

The location of the fuses in the engine compartment: Cadillac XT4 (2019)

Fuse box diagrams

2019, 2020

Instrument panel fuse block

Instrument panel fuse box diagram: Cadillac XT4 (2019)

Assignment of the fuses and relays in the instrument panel (2019, 2020)

F1 Left power window
F2 Right power window
F3 Not Used
F4 DC DC battery 2/1
F5 Auxiliary power outlet – cargo
F6 Heated seat battery 1
F7 Heated seat battery 2
F8 Body control module 3
F9 Electric parking brake switch
F10 Body control module 2 (stop/start)
F11 Not Used
F12 Not Used
F13 Not Used
F14 Not Used
F15 Transmission control module (stop/start)
F16 Amplifier
F17 Not Used
F18 Video processing module
F19 Power steering column
F20 Body control module 6
F21 Body control module 4
F22 Body control module 7
F23 Electric steering column lock
F24 Airbag
F25 Data link connector
F26 Not Used
F27 Not Used
F28 Not Used
F29 Body control module 8
F30 Overhead console
F31 Steering wheel control
F32 Not Used
F33 Heating ventilation/Air conditioning
F35 Heated switch
F36 Charger
F37 Auxiliary power outlet – front
F38 OnStar
F39 Display
F40 Obstacle detection
F41 Body control module 1 (stop/start)
F42 Radio
F43 Auxiliary power outlet – console (circuit breaker)
F44 Auxiliary power outlet – console
K1 Not Used
K2 Retained accessory power
K3 Not Used
K4 Not Used
K5 Not Used

Engine compartment fuse block

Under-hood fuse box diagram: Cadillac XT4 (2019-2020)

Assignment of the fuses and relays in the engine compartment (2019, 2020)

3 Antilock brake system pump
5 2019: Not Used
2020: Trailer brake
6 Rear closure
7 Trailer stop/Turn LH
8 Memory seat module
9 Pedestrian friendly alert function
10 Semi-active damping system
11 2019: DC-DC Battery 1
2020: DC-DC Battery 1/2
12 Rear defogger
13 Heated mirror
14 Not Used
15 Passive entry passive start
16 Front wiper
17 Passenger power seat
18 Power liftgate module
19 Driver power seat
21 Sunroof
22 Rear wiper
23 2019: Auto headlamp leveling/Canister vent solenoid
2020: Trailer interface module 2
26 Transmission control module/Ignition
27 Instrument panel body/Ignition
28 Rear wiper
29 2019: Seat ventilation
2020: Trailer ignition
30 Malfunction indicator lamp
32 Rear drive control module 1
33 Front heated seat
34 Handsfree/Window switch
35 2019: Not Used
2020: Diesel exhaust fuel heater
36 Fuel module
39 Massage
40 Steering column lock
41 Not Used
43 Heated steering wheel
44 Not Used
46 Engine control module/Ignition
48 Rear drive control module 2
49 Heating ventilation/ Air conditioning blower motor
50 Not Used
51 Not Used
54 Not Used
55 Not Used
56 Starter motor
57 Not Used
58 Not Used
59 High-beam headlamps
60 2019: Not Used
2020: Trailer interface module 1
61 Not Used
62 Not Used
63 Not Used
65 Air conditioning control
67 Not Used
68 Not Used
69 Not Used
70 Trailer park lamp
72 Starter pinion
75 Engine control module
76 Powertrain off engine
78 Horn
79 Washer pump
81 Transmission control module/Engine control module
82 2019: Not Used
2020: Nitrogen oxide sensor
83 Ignition coil
84 Powertrain on engine
85 Shunt
86 Shunt
87 2019: Not Used
2020: Diesel fuel heater 1
88 Aeroshutter
89 2019: Not Used
2020: Selective catalytic reduction module
92 Trailer stop/Turn right
93 2019: Not Used
2020: Automatic headlamp leveling/Canister vent solenoid
95 2019: Not Used
2020: Smart sensors
96 2019: Not Used
2020: Diesel fuel heater 2
99 Not Used
4 Not Used
20 Rear defogger
25 Front wiper control
31 Run/Crank
37 Front wiper speed
42 Not Used
64 Starter motor
66 Powertrain
71 Trailer park lamp
73 Air conditioning control
80 Starter pinion
90 2019: Not Used
2020: Powertrain sensor
94 2019: Not Used
2020: Diesel exhaust fuel heater
98 2019: Not Used
2020: Diesel fuel heater

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