Fuses and relays GMC Sierra (mk4 2014-2018)

Fuse Layout GMC Sierra 2014-2018

Fuses and relays GMC Sierra (mk4 2014-2018)

Fuse box location

Passenger compartment fuse boxes

Instrument Panel Fuse Block (Left)
The left instrument panel fuse block access door is on the driver side edge of the instrument panel.Fuses and relays GMC Sierra (mk4 2014-2018)

Instrument Panel Fuse Block (Right)
The right instrument panel fuse block access door is on the passenger side edge of the instrument panel.Fuses and relays GMC Sierra (mk4 2014-2018)

Fuses and relays GMC Sierra (mk4 2014-2018)

Engine compartment

The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.Fuses and relays GMC Sierra (mk4 2014-2018)

Fuse box diagrams

2014, 2015, 2016, 2017

Engine compartment

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the engine compartment (2014-2017)

Usage
Micro J-Case Fuses
1 Trailer Brake
2 Trailer Battery
J-Case Fuses
3 Antilock Brake System Pump
4 Instrument Panel BEC 1
5 Spare
6 4WD Tree
7 Spare
8 Instrument Panel BEC 2
9 Spare
10 Rear Window Defogger
11 Starter
12 Cooling Fan 1
13 Cooling Fan 2
Mini Fuses (2 Pin)
14 Trailer Stop/Turn Lamps, Left
15 Trailer Parking Lamps
16 Trailer Back-up Lamp
17 Trailer Stopfium Lamps, Right
Micro Fuses (2 Pin)
18 Fuel Pump
19 Integrated Chassis Control Module
20 Electronic Suspension Control Module
21 Fuel Pump Power Module
22 Upfitter Switch 1
23 Upfffler2
24 Front Wiper
25 Antilock Brake System Valves
26 Upfitter SW 2
27 Upfitter SW 3
28 Parlang Lamps, Right
29 Parlang Lamps, Left
30 Upfitter 3
31 Upfitter SW 4
32 Upfitter 4
33 Back-up Lamps
34 Engine Control Module Ignition
35 Air Conditioning Compressor Clutch
36 Heated Mirrors
37 Upfflter 1
38 Center High-Mounted Stoplamp
39 Miscellaneous Ignition
40 Transmission Ignition
41 Fuel Pump 2
42 Cooling Fan Clutch
43 Engine
44 Fuel Injectors A, Odd
45 Fuel Injectors B, Even
46 Oxygen Sensor B
47 Throttle Control
48 Horn
49 Fog Lamp
50 Oxygen Sensor A
51 Engine Control Module
52 Interior Heater
53 Spare
54 Aeroshutter
55 Front Washer
Micro Fuses (3 Pin)
56 Air Conditioning Compressor/Battery Regulated Voltage Control
57 Air Conditioning CompressorModule/Battery Pack
58 Transmission Control Module/Engine Control Module
59 Headlamps
Micro Relays
60 Fuel Pump
61 Upfitter2
62 Upfitter3
63 Upfitter4
64 Trailer Parking Lamps
65 Run/Crank
66 Upfitter 1
67 Fuel Pump 2
68 Air Conditioning Control
69 Starter
70 Rear Window Defogger
71 Engine Control Module
Solid State Relay
72 Cooling Fan Clutch
Instrument Panel (Left)

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the Instrument Panel Fuse Block (Left) (2014-2017)

Usage
1 Accessory Power Outlet 2
2 SEO Retained Accessory Power
3 Universal Garage Door Opener/lnside Rearview Mirror
6 Body Control Module 3
7 Body Control Module 5
8 Driver Window Switch/Mirror Switch
9 Spare
10 Accessory Power Outlet Retained Accessory Power
11 Accessory Power Outlet Battery
12 Accessory Power Outlet 1/Cigarette Lighter
13 Discrete Logic Ignition Switch
14 Switch Backlighting
17 Body Control Module 1
19 Spare
20 Spare
22 Heater, Ventilation, and Air Conditioning/Auxiliary Heater, Ventilation and Air Conditioning Ignition
23 Instrument Cluster Ignition/Sensing Diagnostic Module Ignition
24 Spare
25 Data Link Connector/Driver Seat Module
26 Passive Entry Passive Start/Heater, Ventilation, and Air Conditioning
27 Spare
28 Spare
29 Park Enable/Electrically Adjustable Pedals
30 SEO
31 Accessory/Run Crank
32 Heated Steering Wheel
33 Spare
34 Instrument Cluster
36 Spare
37 Spare
40 Left Doors
41 Driver Power Seat
43 Left Front Heated/Cooled Seat
44 Right Front Heated/Cooled Seats
45 Spare
49 Retained Accessory Power/Accessory
50 Run/Crank
Instrument Panel (Right)

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the Instrument Panel Fuse Block (Right) (2014-2017)

Usage
1 Accessory Power Outlet 3
2 Accessory Power Outlet 4
7 Body Control Module 4
8 Body Control Module 8
9 Rear Seat Entertainment
10 Cargo Lamp
15 Steering Wheel Controls
18 Radio
19 Spare
20 Sunroof
23 Airbag/lnfo
26 Export/Power Take Off/SEO Battery 1
27 Obstacle Detection/USB Ports
28 Body Control Module 2
32 SEO Battery 2
35 AC Inverter
36 Amplifier
37 Spare
39 Rear Sliding Window
42 Right Door Window Motor
43 Front Blower
44 SEO
45 Body Control Module 6
46 Body Control Module 7
47 Passenger Seat
50 Retained Accessory Power/Accessory
51 Rear Sliding Window Open
52 Rear Sliding Window Close

2018

Engine compartment

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the engine compartment (2018)

Usage
1 Trailer brake
2 Trailer battery
3 Antilock brake system pump
4 Instrument panel BEC 1
5 Passenger motorized seat belt
6 4WD transfer case electronic control
7 Electric park brake
8 Instrument panel BEC 2
9 Driver motorized seat belt
10 Rear window defogger
11 Starter
12 Cooling fan 1
13 Cooling fan 2
14 Left trailer stop/ Turn signal lamps
15 Trailer parking lamps
16 Trailer reverse lamps
17 Right trailer stop/ Turn signal lamps
18 Fuel pump
19 Integrated chassis control module
20 Electronic suspension control module
21 Fuel pump power module
22 Upfitter 1
23 Upfitter2
24 Front wiper
25 Antilock brake system valve
26 Upfitter 2
27 Upfitter 3
28 Right parking lamps
29 Left parking lamps
30 Upfitter 3
31 Upfitter 4
32 Upfitter 4
33 Reverse lamps
34 Engine control module/Ignition
35 Air conditioning clutch
36 Heated mirrors
37 Upfitter 1
38 Center high-mounted stoplamp
39 Miscellaneous/ Ignition
40 Transmission/ Ignition
41 Fuel pump 2
42 Cooling fan clutch
43 Engine
44 Fuel injectors A–odd
45 Fuel injectors B–even
46 O2 Sensor B
47 Throttle control
48 Horn
49 Fog lamps
50 O2 Sensor A
51 Engine control module
52 Interior heater
53 Accessory power module/TPM pump
54 Front washer
55 Air conditioning/ Battery regulated voltage control
56 Air conditioning module/ Battery pack
57 Transmission control module/ Engine control module
58 Headlamps
74 Electric running boards (if equipped)
76 Fuel pump prime / MGU motor
77 Cabin pump motor
79 Vacuum pump
Relays
59 Fuel pump
60 Upfitter 2
61 Upfitter 3
62 Upfitter 4
63 Trailer parking lamps
64 Run/Crank
65 Upfitter 1
66 Fuel pump 2
67 Air conditioning control
68 Starter
69 Rear window defogger
70 Engine control module
71 Vacuum pump/ Cooling fan clutch
72 CKT 95
73 CKT 92
75 Fuel pump prime/ MGU motor
78 Vacuum pump switch
Instrument Panel (Left)

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the Instrument Panel (Left) (2018)

Usage
1 Accessory power outlet 2
2 Special equipment option/Retained accessory power
3 Universal remote system/lnterior rearview mirror
6 Body control module 3
7 Body control module 5
8 Driver window switch/ Mirror switch
9 Not Used
10 Accessory power outlet/Retained accessory power
11 Accessory power outlet battery
12 Accessory power outlet 1/Cigarette lighter
13 Discrete logic ignition switch
14 Switch backlighting
17 Body control module 1
19 Not Used
20 Not Used
22 Heating, ventilation, and air conditioning/ Auxiliary heating, ventilation, and air conditioning/lgnition
23 Instrument cluster/ Ignition sensing diagnostic module/ Ignition
24 Not Used
25 Data link connector/ Driver seat module
26 Passive entry/Passive start/Heating, ventilation, and air conditioning
27 Not Used
28 Not Used
29 Park enable/ Electrically adjustable pedals
30 Special equipment option
31 Accessory/Run/Crank
32 Heated steering wheel
33 Not Used
34 Instrument cluster
36 Not Used
37 Not Used
38 4WD transfer case electronic control
40 Left doors
41 Driver power seat
43 Left heated, cooled or ventilated seats (if equipped)
44 Right heated, cooled or ventilated seats (if equipped)
45 Not Used
Relays
49 Retained accessory power
50 Run/Crank
Instrument Panel (Right)

Fuses and relays GMC Sierra (mk4 2014-2018)

Assignment of the fuses in the Instrument Panel (Right) (2018)

Usage
1 Accessory power outlet 3
2 Accessory power outlet 4
7 Body control module 4
8 Body control module 8
9 Rear seat entertainment
10 Cargo lamp
15 Steering wheel controls
18 Radio
19 Not Used
20 Sunroof
23 Airbag/lnfo
26 Export/Power take off/ Special equipment option/Battery 1
27 Obstacle detection/ USB ports
28 Body control module 2
32 Special equipment option/Battery 2
35 Air conditioning inverter
36 Amplifier
37 Battery system
39 Rear sliding window
42 Right door window motor
43 Front blower
44 Special equipment option
45 Body control module 6
46 Body control module 7
47 Passenger seat
Relays
50 Retained accessory power
51 Rear sliding window open
52 Rear sliding window close

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