Cadillac CT6 | 2016-2018

Discover Cadillac CT6 fuse box diagrams for 2016–2018 models with relay assignments, fuse locations, panel layouts, and electrical system details. This article covers the Cadillac CT6 before the facelift, available from 2016, and includes fuse box diagrams for Cadillac CT6 2016, 2017 and 2018, along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse and relay (fuse layout).

Engine Compartment

Fuse Box Location

The underhood fuse block is located on the driver’s side of the engine compartment.

Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment fuse box

Fuse Data
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No.Description
12016-2017: Traction power inverter 2
2018: –
2Power coolant pump
3–
4Traction power inverter 1
5Transmission / Ignition
6–
72016-2017: Starter 2
2018: Starter motor
82016-2017: Starter 1
2018: Starter pinion
9Horn
10–
112016-2017: Right LED
2018: –
122016-2017: Left LED
2018: –
13Left and right high-beam headlamps
18Right cornering LED
21Air conditioning clutch
22–
23Coolant heater control module
24Cabin coolant pump
26Hi fuel
27Steering column lock
28Rear heated seats
29Front heated seats
30–
312016-2017: LED LGT battery
2018: HDLP / DRL / Right headlamp
32Air conditioning control module
332016-2017: AIR solenoid
2018: –
34–
352016-2017: Engine control module
2018: Engine control module IGN2
362016-2017: Engine control module 2
2018: Engine control module IGN1
37Coolant pump / Ignition coils – odd
38Ignition coils – even / Non walk 2
39Non walk
40Instrument cluster
41–
42Fuel pump power module
43Instrument panel body / Ignition
44Aeroshutter
45Washer
46Front sensor
47Left cornering LED
54–
55–
562016-2017: Air pump
2018: –
57–
582016-2017: Instrument panel electronic center
2018: –
59–
60(ABS) Antilock brake system pump
61Front wiper
62Headlamp leveling
63Electric brake booster module
64–
65–
66Transfer case control module
67Electric brake booster
68Rear seat entertainment display
692016: –
2017-2018: Rechargeable energy storage system coolant pump
70–
71(ABS) Antilock brake system valve
72–
73–

Relays

Assignment of the relays in the engine compartment fuse box

Fuse Data
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No.Description
14Air conditioning control
152016-2017: Starter 2
2018: Starter motor
162016-2017: Starter 1
2018: Starter pinion
17Run / Crank
192016-2017: Low-beam headlamps
2018: –
20High-beam headlamps
25Cabin coolant pump
482016-2017: AIR solenoid
2018: –
492016-2017: Air pump
2018: –
50Engine control module
51Wiper speed
52Wiper control
53Headlamp control

Passenger Compartment

Fuse Box Location

The instrument panel fuse block is located behind the driver-side instrument panel storage compartment.

How to Access: Press inward on the two retaining tabs at the sides of the compartment until they clear the sides of the instrument panel. Let the compartment lower and move out of the way.

Fuse Box Diagram

Fuses

Assignment of the fuses in the passenger compartment fuse box

Fuse Data
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No.Description
F1Power outlet
F2Visor
F3Front blower
F4Body control module 8
F5Power steering column
F6Column lock
F7Glove box door
F8Front heated seat module
F9Sensing and diagnostic module
F10Body control module 4
F11Body control module 3
F12Data link connector
F13–
F14–
F15Rear vision camera
F16Display
F17Heating, ventilation, and air conditioning control
F18OnStar
F19–
F202016-2017: Lane departure warning
2018: –
F212016-2017: –
2018: Traction power inverter 2
F22Infotainment 2
F23Central gateway module
F24Infotainment 1
F25Video processing module
F26Steering wheel controls
F27USB charge port
F28Wireless charger
F29–
F30Speaker

Luggage Compartment

Fuse Box Location

The rear compartment fuse block is located behind a cover on the passenger side of the rear compartment.

Fuse Box Diagram (Without Super Cruise)

Fuses

Assignment of the fuses in the luggage compartment (Without Super Cruise)

Fuse Data
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No.Description
F01UCAP
F02Trunk power outlet
F03Driver window motor
F04–
F05Canister vent
F06Right rear memory seat
F07Body control module 7
F08Driver seat adjustment switch
F09Passive entry / Passive start
F10Rear subwoofer amplifier
F11Driver memory seat module
F12–
F13–
F14Rear seat memory / heated
F15Left front amplifier
F16Right front seat
F17Rear heated seat
F18Regulated voltage control battery
F192016-2017: Door mirror switch
2018: Driver, passenger door window / mirror / driver seat adjustment
F20–
F21Vehicle integration control module
F22–
F23Rear closure
F24–
F25Left motorized safety belt pretensioner
F26Rear defogger
F27Right front amplifier
F28Amplifier
F29Sunroof
F30Body control module 2
F31Body control module 6
F32Exterior heated mirror
F332016-2017: Right window
2018: Right mirror
F34Power trunk module
F35On-board charging module
F36Alarm siren module
F37DC AC inverter
F38Rear blower
F39Fuel pump power
F40–
F41Rear seat power outlet
F42Left rear memory seat
F43–
F44Rear closure release switch / lift gate module
F45Auxiliary audio / Video / Radio
F462016-2017: External object calculating / Side blind zone alert / Radar short range sensor
2018: External object calculating / Side blind zone alert / Radar short range sensor / Long range radar sensors
F47–
F48Right front seat
F49Memory bolster module
F50Body control module 1
F51Transmission control module
F52Parking assist
F53Heated, cooled or ventilated seats (if equipped)
F542016: Rain sensor / Power sounder / Intrusion / Universal remote system
2017-2018: Headliner
F55Front memory seat module
F56Evaporative emissions leak check module
F57Voltage current temperature module
F58–
F59Engine control module power
F60Right motorized safety belt pretensioner
F61Parking lamps
F62–
F63–
F64Engine control module Ignition
F65Rear glass sunshade
F66Rear vision camera / Interior rearview mirror
F672016: DC DC converter / Air quality sensor
2017: Run / Crank / MISC
2018: Run / Crank / Misc / DC DC converter / air quality sensor
F68Damping control module
F692016: –
2017-2018: Television tuner module
F70–
F71–
F72–
F73–
F74–
F75–

Relays

Assignment of the relays in the luggage compartment (Without Super Cruise)

Fuse Data
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No.Description
R1Rear seat power outlet relay
R2Fuel pump relay
R3Run / Crank relay

Fuse Box Diagram (With Super Cruise)

Fuses

Assignment of the fuse in the luggage compartment (With Super Cruise)

Fuse Data
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No.Description
F01–
F02Body control module 2 and 4
F03Left rear external object calculating module
F04Steering wheel display touch sensor
F05–
F06–
F07Left front and right rear short range radar sensor / Camera image processing module
F08Driver memory seat module
F09Column friction device
F10Left headlamp
F11–
F12–
F13Left front subwoofer
F14Rear blower
F15Left window
F16Canister vent
F17Rear heated seat
F18Rear subwoofer
F19Damping control module
F22–
F23Left front motorized seat belt pretensioner
F24Body control module 7
F25Passive entry / Passive start
F26Rear closure latch
F27Amplifier
F28Rear defogger
F29Ultrasonic park assist module
F30Body control module 1
F31Driver monitoring system
F32Driver mirror switch
F33Seat adjustment switch
F34Left front memory seat
F35Right rear memory seat
F36Heated mirror
F37–
F38Transmission control module
F39–
F40–
F41–
F42–
F43Power trunk module
F44Right front memory seat
F45–
F46Right window
F47Engine control module battery
F48Right front subwoofer
F49Body control module 6
F50Regulated voltage control battery
F51DC AC inverter
F52Fuel pump power module
F53Rear seat auxiliary power outlet
F54Left rear memory seat
F55–
F56Rear closure release switch / Liftgate module
F57Rear left and rear center short range and long range radar sensor / Rt rear EOCM
F58Radio
F59–
F60Memory bolster module
F61–
F62Ventilated seat
F63Headliner
F64Passenger memory seat module
F65Right front short range radar sensor / Advance driver assist map
F66Television tuner module
F67–
F68–
F69–
F70Right front motorized seat belt pretensioner
F71Rear heated seat module
F72Sunroof
F73Rear vision camera / Inside rear view mirror / Air quality sensor
F74Rear window sunshade
F75Engine control module ignition
F76Misc run crank / Energy storage control module / Camera
F77Trunk auxiliary power outlet
F78Rear HVAC display
F79–
F80–
F81–
F82–
F83–
F84–
F85–
F86–
F87–

Relays

Assignment of the relays in the luggage compartment (With Super Cruise)

Fuse Data
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No.Description
R1Rear seat auxiliary power outlet
R2Fuel pump
R3Run / Crank

FAQ

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