GMC Terrain (2010) – fuse box diagram

GMC Terrain (2010) – fuse box diagram

Year of production: 2010

Engine Compartment Fuse Block

GMC Terrain - fuse box - engine compartment
GMC Terrain – fuse box – engine compartment
J-Case Fuses Usage
1 Cool Fan 1
2 Cool Fan 2
3 Rear Defog
4 Power Windows – Right
5 Memory Seat Module
6 Power Seat – Left
7 Instrument Panel Fuse Block 1
8 Instrument Panel Fuse Block 2
9 Starter
10 Brake Booster
11 Sunroof
12 Antilock Brake System Pump
13 Instrument Panel Fuse Block 3
14 Power Windows – Left
15 Antilock Brake System Module

 

Mini Fuses Usage
16 Transmission Control Module Battery
17 Trailer Parking Light
18 Engine Control Module Battery
19 Heated Mirror
20 Trailer Left
21 Lift Gate Module
22 Power Lumbar
23 Trailer Right
24 Canister Vent
25 Memory Mirror Module
26 Regulated Voltage Control Battery Sensor
27 Rear Accessory Power Outlet
28 Wiper
29 Rear Wiper
30 Air Conditioning Compressor
31 Rear Latch
32 Horn
33 Right High‐Beam Headlamp
34 Left High‐Beam Headlamp
35 Ignition Even Coil
36 Ignition Odd Coil
37 Windshield Washer
38 Front Fog Lamps
39 Post Catalytic Converter Oxygen Sensor
40 Engine Control Module
41 Pre–Catalytic Converter Oxygen Sensor
42 Transmission Control Module
43 Mirror
44 Chassis Control Module Ignition
45 Spare
46 Rear Drive Module
47 Lift Gate Module Logic
48 Instrument Panel Fuse Block Ignition
49 Heated Seat – Front
50 Chassis Control Module
51 Engine Control Module
52 Rear Vision Camera

 

Midi Fuse Usage
53 Electric Power Steering

 

Micro Relays Usage
54 Rear Defogger
55 Cooling Fan Low
56 Head Lamp High Beam
57 Cooling Fan Control
58 Wiper On/Off Control
59 Air Conditioning Compressor
60 Wiper Speed
61 Fog Lamp
62 Engine Control
63 Starter
64 Run/Crank

 

Mini Relays Usage
65 Cooling Fan High
66 Brake Booster

Instrument Panel Fuse Block

The instrument panel fuse block is located on the passenger side panel of the center console.

GMC Terrain - fuse box - instrument panel
GMC Terrain – fuse box – instrument panel
Mini Fuses Usage
1 Steering Wheel DM
2 Spare
3 Spare
4 Body Control Module 1
5 Infotainment
6 Body Control Module 7
7 Noise Control Module
8 Body Control Module 4
9 Radio
10 SEO Battery
11 Ultrasonic Rear Parking Aid Module
12 Heater, Ventilation and Air Conditioning Battery
13 Auxiliary Power Front
14 Heater, Ventilation and Air Conditioning Ignition
15 Display
16 Body Control  Module 5
17 Auxiliary Power Rear
18 Instrument Panel Cluster Ignition
19 PDI Module
20 Body Control Module 6
21 SEO Retained Accessory Power
22 SDM Ignition
23 Spare
24 Spare
25 PRNDL
26 Spare
27 Spare
28 Spare
30 Body Control Module 3
31 Amplifier
32 Discrete Logic Ignition Switch
33 Communications Integration Module
34 Body Control Module 2
35 SDM Battery
36 Data Link Connection
37 Instrument Panel Cluster Battery
38 IOS Module (Passenger Sensing System)
39 Spare

 

J-Case Fuses Usage
29 Front Blower Motor
40 Body Control Module 8

 

Relays Usage
41 LOG Relay
42 Retained Accessory Power Relay

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

GMC T-Series mk3 (2007 – 2010) – fuse box diagram

GMC T-Series mk3 (2007 – 2010) – fuse box diagram

Year of production: 2007, 2008, 2009, 2010

Instrument Panel Circuit Breaker and Relay Blocks

These circuit breaker and relay blocks are located on top of the instrument panel on the passenger’s side of the cab.

GMC T-Series - fuse box - instrument panel
GMC T-Series – fuse box – instrument panel
Number Circuits Protected
1 Ignition Switch
2 Cigarette Lighter
3 ECM Ignition 1
4 Truck Body Controller
5 ALDL Connector
6 Warning Lamp, Ignition Relay, Blower Motor, Motor Relay, Auxiliary Relay, Power Window Relay, INT Relay
7 Room Lamp, Horn, Electric Parking Brake, Radio Back Up, Rear Body Dome Lamp
8 Power Window
9 Exhaust Brake Back Up, Air Suspension Dump, Differential Lock, Air Dryer, Moisture Ejection Heater, Electric Air Compressor, Power Take Off
10 ECM Ignition Power
11 Trailer Turn (LH) Lamp
12 Auxiliary (Ignition ON)
13 Auxiliary (Battery Direct)
14 Headlamp (LH)
15 Headlamp (RH)
16 Headlamp
17 Heated Fuel
18 Meter Truck Body Controller
19 ID Lamp, Marker Lamp, Tail Lamp, Lighted Mirror, Illumination Lamp
20 Cool Condenser Fan Motor, Cooler Compressor
21 Wiper Motor, Washer Motor
22 Heated Mirror, Two-Speed Axle Relay
23 Empty
24 Blower Motor, Air Conditioner Relay
25 Trailer Turn (RH) Lamp, Flasher Unit
26 Power Post (Consent)

Maxi-Fuse Block

Maxi-Fuse block is located outside of the cab at the rear, on the driver’s side.

Name Circuits/Circuit Breakers Protected
ST/TURN/HAZ Stoplamp, Turn Signals/Hazard Warning Flashers
IGN SW3 Air Conditioner, Axle, Chassis
INT/EXT LIGHTS Parking Lamps, Dome Lamp, Instrument Panel Lights
HEAD LAMP Headlamps, Daytime Running Lamps
AUX WRG Auxiliary, Parking Brake
IGN SW1 Ignition Switch, Washer/Wiper, Crank, Radio
HYD PUMP Hydraulic Brake, Brake Pump Motor
ABS Anti-Lock Brake System Module
ELECT TRANS Ignition Relay
PARK BRAKE Parking Brake Motor
BLOWER HORN Blower, Horn, Cigarette Lighter, Auxiliary
TRAILER ABS Trailer Anti-Lock Brake System, Trailer Stoplamps
PWR WDO/LOCKS Power Windows, Power Door Locks

Relay Blocks

There are three relay blocks in your vehicle.

GMC T-Series - fuse box - relay blocks
GMC T-Series – fuse box – relay blocks
Relay Relay block
A Relay Block A
B Relay Block B
C Relay Block C
D Relay Block D (Not Shown)

Relay Block A

GMC T-series - fuse box - relay block A
GMC T-series – fuse box – relay block A
Relay Block A Usage
1 Power Window
2 Back Lamp (Reverse)
3 High Beam
4 Lighting
5 Lighting (Low, High)
6 Trailer Turn Signal (Left Headlamp)
7 Tail Lamp
8 Marker Lamp
9 Trailer Turn Signal (Right Headlamp)

Relay Block B

GMC T-Series - fuse box - relay block B
GMC T-Series – fuse box – relay block B
Relay Block B Usage
1 Air Conditioning Condenser (If Equipped)
2 Air Conditioning Compressor (If Equipped)
3 Heater Fan
4 Ignition (Accessory)
5 Ignition 1
6 Ignition 2
7 Auxiliary
8 Horn
9 Ignition 3
10 Dome Lamp (If Equipped)
11 Exhaust Brake (If Equipped)
12 Power Take Off Control (If Equipped)

Relay Block C

GMC T-series - fuse box - relay block C
GMC T-series – fuse box – relay block C
Relay Block C Usage
1 Parking Brake
2 Daytime Running Lamps (DRL) On (Engine Run)
3 Daytime Running Lamps (DRL) Off (Parking)
4 Parking Lamps/Daytime Running Lamps (DRL)
5 Fuel Filter (Heated Fuel)
6 Stop Lamp

Relay Block D

GMC T-series - fuse box - relay block D
GMC T-series – fuse box – relay block D
Relay Block D Usage
1 Neutral (Medium Duty Transmission)
2 Back-up Lamp (Reverse) (Medium Duty Transmission)

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

GMC T-Series mk3 (2003 – 2006) – fuse box diagram

GMC T-Series mk3 (2003 – 2006) – fuse box diagram

Year of production: 2003, 2004, 2005, 2006

Instrument Panel Circuit Breaker and Relay Blocks

These circuit breaker and relay blocks are located on top of the instrument panel on the passenger’s side of the cab.

GMC T-Series - fuse box - instrument panel
GMC T-Series – fuse box – instrument panel
Number Circuits Protected
1 Ignition Switch
2 Cigarette Lighter
3 ECM Ignition 1
4 Truck Body Controller
5 ALDL Connector
6 Warning Lamp, Ignition Relay, Blower Motor, Motor Relay, Auxiliary Relay, Power Window Relay, INT Relay
7 Room Lamp, Horn, Electric Parking Brake, Radio Back Up, Rear Body Dome Lamp
8 Power Window
9 Exhaust Brake Back Up, Air Suspension Dump, Differential Lock, Air Dryer, Moisture Ejection Heater, Electric Air Compressor, Power Take Off
10 ECM Ignition Power
11 Trailer Turn (LH) Lamp
12 Auxiliary (Ignition ON)
13 Auxiliary (Battery Direct)
14 Headlamp (LH)
15 Headlamp (RH)
16 Headlamp
17 Heated Fuel
18 Meter Truck Body Controller
19 ID Lamp, Marker Lamp, Tail Lamp, Lighted Mirror, Illumination Lamp
20 Cool Condenser Fan Motor, Cooler Compressor
21 Wiper Motor, Washer Motor
22 Heated Mirror, Two-Speed Axle Relay
23 Empty
24 Blower Motor, Air Conditioner Relay
25 Trailer Turn (RH) Lamp, Flasher Unit
26 Power Post (Consent)

Maxi-Fuse Block

Maxi-Fuse block is located outside of the cab at the rear, on the driver’s side.

Name Circuits/Circuit Breakers Protected
ST/TURN/HAZ Stoplamp, Turn Signals/Hazard Warning Flashers
IGN SW3 Air Conditioner, Axle, Chassis
INT/EXT LIGHTS Parking Lamps, Dome Lamp, Instrument Panel Lights
HEAD LAMP Headlamps, Daytime Running Lamps
AUX WRG Auxiliary, Parking Brake
IGN SW1 Ignition Switch, Washer/Wiper, Crank, Radio
HYD PUMP Hydraulic Brake, Brake Pump Motor
ABS Anti-Lock Brake System Module
ELECT TRANS Ignition Relay
PARK BRAKE Parking Brake Motor
BLOWER HORN Blower, Horn, Cigarette Lighter, Auxiliary
TRAILER ABS Trailer Anti-Lock Brake System, Trailer Stoplamps
PWR WDO/LOCKS Power Windows, Power Door Locks

Relay Blocks

There are three relay blocks in your vehicle.

GMC T-Series - fuse box - relay blocks
GMC T-Series – fuse box – relay blocks
Relay Relay block
A Relay Block A
B Relay Block B
C Relay Block C

Relay Block A

GMC T-series - fuse box - relay block A
GMC T-series – fuse box – relay block A
Relay Block A Usage
1 Power Window
2 Back Lamp (Reverse)
3 High Beam
4 Lighting
5 Lighting (Low, High)
6 Trailer Turn Signal (Left Headlamp)
7 Tail Lamp
8 Marker Lamp
9 Trailer Turn Signal (Right Headlamp)

Relay Block B

GMC T-Series - fuse box - relay block B
GMC T-Series – fuse box – relay block B
Relay Block B Usage
1 Air Conditioning Condenser
2 Air Conditioning Compressor
3 Heater Fan
4 Ignition Accessory
5 Ignition 1
6 Ignition 2
7 Auxiliary
8 Horn
9 Ignition 3
10 Dome Lamp
11 Exhaust Brake
12 Power Take Off Control

Relay Block C

GMC T-series - fuse box - relay block C
GMC T-series – fuse box – relay block C
Relay Block C Usage
1 Parking Brake
2 Daytime Running Lamps On
3 Daytime Running Lamp Off
4 Parking Lamps/Daytime Running Lamps
5 Neutral
6 Stop Lamp

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

GMC T-Series mk2 (1999 – 2002) – fuse box diagram

GMC T-Series mk2 (1999 – 2002) – fuse box diagram

Year of production: 1999, 2000, 2001, 2002

Instrument Panel Circuit Breaker and Relay Blocks

These circuit breaker and relay blocks are located on top of the instrument panel on the passenger’s side of the cab.

Number Circuits Protected
1 Ignition Switch
2 Cigarette Lighter, Radio
3 Engine ECU (TICS)
4 Glow Relay, ESC, EVRV, Gov. Mod., Engine ECM (GAS)
5 Checker Connector (TICS), ALDL Connector
6 Meter, D.R.A.B., Warning Lamp, Engine Stop Relay, Ignition Relay, Blower Motor Relay, Auxiliary Relay, Power Window Relay, Air Intake Relay, Fuel Filter Relay, Intermittent Relay
7 Dome Lamp, Horn, Electric Parking Brake, Radio (Back-Up), MD Automatic Transmission VIM, Engine ECM (GAS), Fuel Pump, Fuel Filter
8 Power Window
9 Anti-Lock Braking System, Exhaust Brake, Back-Up Lamps, M.F.A.M., Electric Parking Brake, Air Suspension Dump, Differential Lock, Air Dry and Moisture Ejector Heater, MD Automatic Transmission, Ignition Coil, Injector, Fuel Tank Module and Pump, Generator (F), Engine ECU (TICS), Checker Connector (TICS)
10 Checker Connector (TICS)
11 Trailer Turn (LH) Lamp, ID Lamp, Marker Lamp, Clearance Lamp
12 Auxiliary (Ignition ON)
13 Auxiliary (Battery Direct)
14 Headlamp (LH)
15 Headlamp (RH)
16 Headlamp
17 Engine Stop Actuator
18 M.F.A.M., Hydraulic Brake Motor
19 Taillamp, Light MIR, Illumination Lamp
20 Cool Condenser Fan Motor, Cooler Compressor
21 Wiper Motor, Washer Motor
22 Heated Mirror, 2-Speed Axle Motor, 2-Speed Axle Relay
23 Hydraulic Brake Relay, M.F.A.M., Flasher Unit
24 Blower Motor, Air Conditioner Relay
25 Trailer Turn (RH) Lamp, Flasher Unit
26 Power Post (Consent)

Maxi-Fuse Block

Maxi-Fuse block is located outside of the cab at the rear, on the driver’s side.

Name Circuits/Circuit Breakers Protected
ST/TURN/HAZ Stoplamp, Turn Signals/Hazard Warning Flashers, Fuel, Ignition Relay (Gasoline Engines)
IGN SW3 Air Conditioner, Axle, Chassis
INT/EXT LIGHTS Parking Lamps, Dome Lamp, Instrument Panel Lights
HEAD LAMP Headlamps, Daytime Running Lamps
AUX WRG Auxiliary, Parking Brake
IGN SW1 Ignition Switch, Washer/Wiper, Crank, Radio
HYD PUMP Hydraulic Brake, Brake Pump Motor
ABS ABS Module
ELECT TRANS Ignition Relay (Diesel Engines)
PARK BRAKE Parking Brake Motor
BLOWER HORN Blower, Horn, Cigarette Lighter, Auxiliary
TRAILER ABS Trailer ABS System, Trailer Stoplamps
PWR WDO/LOCKS Power Windows, Power Door Locks

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

GMC Sonoma (2003 – 2004) – fuse box diagram

GMC Sonoma (2003 – 2004) – fuse box diagram

Year of production: 2003, 2004

Instrument Panel Fuse Block

The instrument panel fuse block is at the driver’s end of the instrument panel.

GMC Sonoma mk2 - fuse box - instrument panel
GMC Sonoma mk2 – fuse box – instrument panel
Fuse/Circuit Breaker Usage
A Not Used
B Not Used
1 Not Used
2 Cigarette Lighter, Data Link Connector
3 Cruise Control, Body Controls TBC, Cruise Module, Cruise Switch
4 Gages, Body Controls TBC, Instrument Panel Cluster, B+ Power
5 Parking Lamps, Power Window Switch, TBC, Ashtray Lamp
6 Not Used
7 Headlamp Switch, Body Controls TBC, Headlamp Relay
8 Courtesy Lamps, Inadvertent Power Relay
9 HVAC Control Head
10 Turn Signal
11 Instrument Panel Cluster, Engine Controls
12 Interior Illumination
13 Auxiliary Power
14 Power Locks
15 4WD Switch, Engine Control (VCM, PCM, Transmission)
16 Supplemental Inflatable Restraint
17 Front Wiper
18 Not Used
19 Radio Battery
20 Not Used
21 HVAC I, HVAC Control Head, HVAC Devices
22 Anti-Lock Brakes
23 Rear Wiper
24 Radio, Ignition

Engine Compartment Fuse Block

The fuse block is under the hood on the driver’s side of the engine compartment.

GMC Sonoma mk2 - fuse box - engine compartment
GMC Sonoma mk2 – fuse box – engine compartment
Name Usage
TRL TRN Trailer Left Turn
TRR TRN Trailer Right Turn
TRL B/U Trailer Back Up Lamps
VEH B/U Vehicle Back-Up Lamps
HDLP PWR Headlamp Power
RT TURN Right Turn Signal Front
LT TURN Left Turn Signal Front
HDLP W/W Not Used
LT TRN Left Turn Signal Rear
RT TRN Right Turn Signal Rear
RR PRK Right Rear Parking Lamps
TRL PRK Trailer Park Lamps
LT HDLP Left Headlamp
RT HDLP Right Headlamp
FRPRK Front Parking Lamps
INT BAT Instrument Panel Fuse Block Feed
ENG I Engine Sensors/Solenoids, MAF, CAM, PURGE, VENT
ECM B Engine Control Module, Fuel Pump Module, Oil Pressure
ABS Anti-Lock Brake System
ECM I Engine Control Module Injectors
F/PUMP Fuel Pump
DRL Daytime Running Lamps
A/C Air Conditioning
HORN Horn
BTSI Automatic Transmission Shift Lock Control System
B/U LP Back Up Lamps
IGN B Column Feed, IGN 2, 3, 4
STARTER Starter
RAP Retained Accessory Power
LD LEV Not Used
OXYSEN Oxygen Sensor
IGN E Engine
MIR/LKS Mirrors, Door Locks
FOG LP Fog Lamps
IGN A Starting and Charging Ignition 1
STUD #2 Accessory Feeds, Electric Brake
PARKLP Parking Lamps
LR PRK Left Rear Parking Lamps
LIFTGLASS Liftglass
IGN C Starter Solenoid, Fuel Pump, PRNDL
HTDSEAT Heated Seat
HVAC Heating,Ventilation, Air Cooling
System
TRCHMSL Trailer Center High Mount Stop Light
RRDFOG Rear Defogger
TBC Truck Body Computer
CRANK Clutch Switch, NSBU Switch
CHMSL Center High Mounted Stoplamp
HAZLP Hazard Lamps
VECHMSL Vehicle Center High-Mounted Stop Lamp
RR DEFOG Rear Defogger
HTDMIR Heated Mirrors
ATC Transfer Case (Four-Wheel Drive)
STOPLP Stoplamps
RR W/W Rear Window Wiper

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

GMC Sonoma (1999 – 2002) – fuse box diagram

GMC Sonoma (1999 – 2002) – fuse box diagram

Year of production: 1999, 2000, 2001, 2002

Instrument Panel Fuse Block

The instrument panel fuse block is at the driver’s end of the instrument panel.

GMC Sonoma mk2 - fuse box - instrument panel
GMC Sonoma mk2 – fuse box – instrument panel
Fuse/Circuit Breaker Usage
A Not Used
B Not Used
1 Not Used
2 Cigarette Lighter, Data Link Connector
3 Cruise Control, Body Controls TBC, Cruise Module, Cruise Switch
4 Gages, Body Controls TBC, Instrument Panel Cluster, B+ Power
5 Parking Lamps, Power Window Switch, TBC, Ashtray Lamp
6 Not Used
7 Headlamp Switch, Body Controls TBC, Headlamp Relay
8 Courtesy Lamps, Inadvertent Power Relay
9 HVAC Control Head
10 Turn Signal
11 Instrument Panel Cluster, Engine Controls
12 Interior Illumination
13 Auxiliary Power
14 Power Locks
15 4WD Switch, Engine Control (VCM, PCM, Transmission)
16 Supplemental Inflatable Restraint
17 Front Wiper
18 Not Used
19 Radio Battery
20 Not Used
21 HVAC I, HVAC Control Head, HVAC Devices
22 Anti-Lock Brakes
23 Rear Wiper
24 Radio, Ignition

Engine Compartment Fuse Block

The fuse block is under the hood on the driver’s side of the engine compartment.

GMC Sonoma mk2 - fuse box - engine compartment
GMC Sonoma mk2 – fuse box – engine compartment
Name Usage
TRL TRN Not Used
TRR TRN Not Used
TRL B/U Not Used
VEH B/U Vehicle Back-Up Lamps
RT TURN Right Turn Signal Front
LT TURN Left Turn Signal Front
HDLP W/W Not Used
LT TRN Left Turn Signal Rear
RT TRN Right Turn Signal Rear
RR PRK Right Rear Parking Lamps
TRL PRK Not Used
LT HDLP Left Headlamp
RT HDLP Right Headlamp
FR PRK Front Parking Lamps
INT BAT I/P Fuse Block Feed
ENG I Engine Sensors/Solenoids, MAF, CAM, PURGE, VENT
ECM B Engine Control Module, Fuel Pump Module, Oil Pressure
ABS Anti-Lock Brake System
ECM I Engine Control Module Injectors
BTSI Brake-Transmission Shift Interlock
B/U LP Back-Up Lamps
A/C Air Conditioning
W/W PMP Not Used
HORN Horn
IGN B Column Feed, IGN 2, 3, 4
RAP Retained Accessory Power
LD LEV Not Used
OXYSEN Oxygen Sensor
IGN E Engine
MIR/LKS Mirrors, Door Locks
FOG LP Fog Lamps
IGN A Starting and Charging IGN 1
STUD #2 Accessory Feeds, Electric Brake
PARKLP Parking Lamps
LR PRK Left Rear Parking Lamps
IGN C Starter Solenoid, Fuel Pump, PRNDL
HTDSEAT Not Used
HVAC HVAC System
TRCHMSL Not Used
RRDFOG Not Used
TBC Truck Body Computer
CRANK Clutch Switch, NSBU Switch
HAZLP Hazard Lamps
VECHMSL Vehicle Center High-Mounted Stoplamp
HTDMIR Heated Outside Mirrors
ATC Transfer Case (Four-Wheel Drive)
STOPLP Stoplamps
RR W/W Not Used

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

GMC Sierra (from 2014) – fuse box diagram

GMC Sierra (from 2014) – fuse box diagram

Year of production: 2014, 2015, 2016

Engine Compartment Fuse Block

The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.

GMC Sierra - fuse box - engine compartment
GMC Sierra – fuse box – engine compartment
Micro J-Case Fuses Usage
1 Trailer Brake
2 Trailer Battery

 

J-Case Fuses Usage
3 Antilock Brake System Pump
4 Instrument Panel BEC 1
5 Spare
6 4WD Trec
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) Usage
14 Trailer Stop/Turn Lamps, Left
15 Trailer Parking Lamps
16 Trailer Back-up Lamp
17 Trailer Stop/Turn Lamps, Right

 

Micro Fuses (2 Pin) Usage
18 Fuel Pump
19 Integrated Chassis Control Module
20 Electronic Suspension Control Module
21 Fuel Pump Power Module
22 Upfitter Switch 1
23 Upfitter 2
24 Front Wiper
25 Antilock Brake System Valves
26 Upfitter SW 2
27 Upfitter SW 3
28 Parking Lamps, Right
29 Parking 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 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 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) Usage
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 Usage
60 Fuel Pump
61 Upfitter 2
62 Upfitter 3
63 Upfitter 4
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 Usage
72 Cooling Fan Clutch

Instrument Panel Fuse Block (Left)

The left instrument panel fuse block access door is on the driver side edge of the instrument panel.

GMC Sierra - fuse box - instrument panel (left)
GMC Sierra – fuse box – instrument panel (left)
Number Usage
1 Accessory Power Outlet 2
2 SEO Retained Accessory Power
3 Universal Garage Door Opener/Inside 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 Fuse Block (Right)

The right instrument panel fuse block access door is on the passenger side edge of the instrument panel.

GMC Sierra - fuse box - instrument panel (right)
GMC Sierra – fuse box – instrument panel (right)
Number 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/Info
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

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

GMC Sierra (2009 – 2013) – fuse box diagram

GMC Sierra (2009 – 2013) – fuse box diagram

Year of production: 2009, 2010, 2011, 2012, 2013

Instrument Panel Fuse Block

The instrument panel fuse block access door is located on the driver’s side edge of the instrument panel.

GMC Sierra - fuse box - instrument panel
GMC Sierra – fuse box – instrument panel
Fuses Usage
1 Rear Seats
2 Rear Accessory Power Outlet
3 Steering Wheel Controls Backlight
4 Driver Door Module
5 Dome Lamps, Driver’s Side Turn Signal
6 Driver Side Turn Signal, Stoplamp
7 Instrument Panel Back Lighting
8 Passenger Side Turn Signal, Stoplamp
9 Universal Home Remote
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12 Stoplamps, Center-High Mounted Stoplamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20 Ultrasonic Rear Parking Assist
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Center (DIC)
23 Not Used
24 Not Used
25 Driver Seat Module, Remote Keyless Entry System
26 Driver Power Door Lock (Unlock Feature)

 

Circuit Breaker Usage
LT DR Driver’s Side Power Window Circuit Breaker

 

Harness Connector Usage
LT DR Driver’s Door Harness Connection
BODY Harness Connector
BODY Harness Connector

Center Instrument Panel Fuse Block

The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.

GMC Sierra - fuse box - central instrument panel
GMC Sierra – fuse box – central instrument panel
Harness Connector Usage
BODY 2 Body Harness Connector 2
BODY 1 Body Harness Connector 1
BODY 3 Body Harness Connector 3
HEADLINER 3 Headliner Harness Connector 3
HEADLINER 2 Headliner Harness Connector 2
HEADLINER 1 Headliner Harness Connector 1
SEO/UPFITTER Special Equipment Option Upfitter Harness Connector

 

Circuit Breaker Usage
CB1 Passenger’s Side Power Window Circuit Breaker
CB2 Passenger’s Seat Circuit Breaker
CB3 Driver’s Seat Circuit Breaker
CB4 Rear Sliding Window

Underhood Fuse Block

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

GMC Sierra - fuse box - engine compartment
GMC Sierra – fuse box – engine compartment
Fuses Usage
1 Right Trailer Stop/Turn Lamp
2 Electronic Stability Suspension Control, Automatic Level Control Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5 Engine Control Module, Throttle Control
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensors
9 Anti-lock Brakes System 2
10 Trailer Back-up Lamps
11 Driver’s Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13 Fuel Injectors, Ignition Coils (Right Side)
14 Transmission Control Module (Battery)
15 Vehicle Back-up Lamps
16 Passenger’s Side Low-Beam Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Not Used
23 Not Used
24 Fuel Injectors, Ignition Coils (Left Side)
25 Trailer Park Lamps
26 Driver’s Side Park Lamps
27 Passenger’s Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger’s Side High-Beam Headlamp
31 Daytime Running Lamps
32 Driver’s Side High-Beam Headlamp
33 Daytime Running Lights 2
34 Sunroof
35 Key Ignition System, Theft Deterrent System
36 Windshield Wiper
37 SEO B2 Upfitter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplifier
42 Audio System
43 Miscellaneous (Ignition), Cruise Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48 Auxiliary Climate Control (Ignition), Compass-Temperature Mirror
49 Center High-Mounted Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter Usage (Battery)
53 Cigarette Lighter, Auxiliary Power Outlet
54 Automatic Level Control Compressor Relay, SEO Upfitter Usage
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary Fuel Pump (Ignition)

 

J-Case Usage
57 Cooling Fan 1
58 Nit Used
59 Heavy Duty Anti-lock Brake System
60 Cooling Fan 2
61 Anti-lock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
66 Heated Windshield Washer System
67 Four-Wheel Drive System
68 Stud 1 (Trailer Connector Battery Power) (Optional – 40A Fuse Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Not Used
72 Left Bussed Electrical Center 2

 

Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power

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

GMC Sierra (2008) – fuse box diagram

GMC Sierra (2008) – fuse box diagram

Year of production: 2008

Instrument Panel Fuse Block

The instrument panel fuse block access door is located on the driver’s side edge of the instrument panel.

GMC Sierra - fuse box - instrument panel
GMC Sierra – fuse box – instrument panel
Fuses Usage
1 Rear Seats
2 Rear Accessory Power Outlet
3 Steering Wheel Controls Backlight
4 Driver Door Module
5 Dome Lamps, Driver’s Side Turn Signal
6 Driver Side Turn Signal, Stoplamp
7 Instrument Panel Back Lighting
8 Passenger Side Turn Signal, Stoplamp
9 Universal Home Remote
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12 Stoplamps, Center-High Mounted Stoplamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20 Ultrasonic Rear Parking Assist
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Center (DIC)
23 Not Used
24 Not Used
25 Driver Seat Module, Remote Keyless Entry System
26 Driver Power Door Lock (Unlock Feature)

 

Circuit Breaker Usage
LT DR Driver’s Side Power Window Circuit Breaker

 

Harness Connector Usage
LT DR Driver’s Door Harness Connection
BODY Harness Connector
BODY Harness Connector

Center Instrument Panel Fuse Block

The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.

GMC Sierra - fuse box - central instrument panel
GMC Sierra – fuse box – central instrument panel
Harness Connector Usage
BODY 2 Body Harness Connector 2
BODY 1 Body Harness Connector 1
BODY 3 Body Harness Connector 3
HEADLINER 3 Headliner Harness Connector 3
HEADLINER 2 Headliner Harness Connector 2
HEADLINER 1 Headliner Harness Connector 1
SEO/UPFITTER Special Equipment Option Upfitter Harness Connector

 

Circuit Breaker Usage
CB1 Passenger’s Side Power Window Circuit Breaker
CB2 Passenger’s Seat Circuit Breaker
CB3 Driver’s Seat Circuit Breaker
CB4 Rear Sliding Window

Underhood Fuse Block

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

GMC Sierra - fuse box - engine compartment
GMC Sierra – fuse box – engine compartment
Fuses Usage
1 Right Trailer Stop/Turn Lamp
2 Electronic Stability Suspension Control, Automatic Level Control Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5 Engine Control Module, Throttle Control
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensors
9 Anti-lock Brakes System 2
10 Trailer Back-up Lamps
11 Driver’s Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13 Fuel Injectors, Ignition Coils (Right Side)
14 Transmission Control Module (Battery)
15 Vehicle Back-up Lamps
16 Passenger’s Side Low-Beam Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Not Used
23 Not Used
24 Fuel Injectors, Ignition Coils (Left Side)
25 Trailer Park Lamps
26 Driver’s Side Park Lamps
27 Passenger’s Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger’s Side High-Beam Headlamp
31 Daytime Running Lamps
32 Driver’s Side High-Beam Headlamp
33 Daytime Running Lights 2
34 Sunroof
35 Key Ignition System, Theft Deterrent System
36 Windshield Wiper
37 SEO B2 Upfitter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplifier
42 Audio System
43 Miscellaneous (Ignition), Cruise Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48 Auxiliary Climate Control (Ignition), Compass-Temperature Mirror
49 Center High-Mounted Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter Usage (Battery)
53 Cigarette Lighter, Auxiliary Power Outlet
54 Automatic Level Control Compressor Relay, SEO Upfitter Usage
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary Fuel Pump (Ignition)

 

J-Case Usage
57 Cooling Fan 1
58 Nit Used
59 Heavy Duty Anti-lock Brake System
60 Cooling Fan 2
61 Anti-lock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
66 Heated Windshield Washer System
67 Four-Wheel Drive System
68 Stud 1 (Trailer Connector Battery Power) (Optional – 40A Fuse Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
72 Not Used
73 Left Bussed Electrical Center 2

 

Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power

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

GMC Sierra (2007) – fuse box diagram

GMC Sierra (2007) – fuse box diagram

Year of production: 2007

Instrument Panel Fuse Block

The instrument panel fuse block access door is located on the driver’s side edge of the instrument panel.

GMC Sierra - fuse box - instrument panel
GMC Sierra – fuse box – instrument panel
Fuses Usage
REAR SEAT Rear Seats
AUX PWR2 Rear Accessory Power Outlet
SWC BKLT Steering Wheel Controls Backlight
DDM Driver Door Module
CTSY Dome Lamps, Driver’s Side Turn Signal
LT STOP TRN Driver Side Turn Signal, Stoplamp
DIM Instrument Panel Back Lighting
RT STOP TRN Passenger Side Turn Signal, Stoplamp
PDM Passenger Door Module, Universal Home Remote System
UNLCK2 Power Door Lock 2 (Unlock Feature)
LCK2 Power Door Lock 2 (Lock Feature)
STOP LAMPS Stoplamps, Center-High Mounted Stoplamp
REAR HVAC Rear Climate Controls
PWR MIR Power Mirror
BCM Body Control Module (BCM)
AUX PWR Accessory Power Outlets
IS LAMPS Interior Lamps
UNLCK1 Power Door Lock 1 (Unlock Feature)
OBS DET Ultrasonic Rear Parking Assist
LCK1 Power Door Lock 1 (Lock Feature)
REAR WPR Not Used
COOLED SEATS Not Used
DSM Driver Seat Module, Remote Keyless Entry System
DRV UNLCK Driver’s Power Door Lock (Unlock Feature)

 

Circuit Breaker Usage
LT DR Driver’s Side Power Window Circuit Breaker

 

Harness Connector Usage
LT DR Driver’s Door Harness Connection
BODY Harness Connector
BODY Harness Connector

Center Instrument Panel Fuse Block

The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.

GMC Sierra - fuse box - central instrument panel
GMC Sierra – fuse box – central instrument panel
Harness Connector Usage
BODY 2 Body Harness Connector 2
BODY 1 Body Harness Connector 1
BODY 3 Body Harness Connector 3
HEADLINER 3 Headliner Harness Connector 3
HEADLINER 2 Headliner Harness Connector 2
HEADLINER 1 Headliner Harness Connector 1
BRAKE CLUTCH Brake Clutch Harness Connector
SEO/UPFITTER Special Equipment Option Upfitter Harness Connector

 

Circuit Breaker Usage
CB1 Passenger’s Side Power Window Circuit Breaker
CB2 Passenger’s Seat Circuit Breaker
CB3 Driver’s Seat Circuit Breaker
CB4 Not Used

Underhood Fuse Block

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

GMC Sierra - fuse box - engine compartment
GMC Sierra – fuse box – engine compartment
Fuses Usage
1 Right Trailer Stop/Turn Lamp
2 Not Used
3 Electronic Stability Suspension Control, Automatic Level Control Exhaust
4 Left Trailer Stop/Turn Lamp
5 Engine Controls
6 Engine Control Module, Throttle Control
7 Trailer Brake Controller
8 Front Washer
9 Oxygen Sensors
10 Anti-lock Brakes System 2
11 Trailer Back-up Lamps
12 Driver’s Side Low-Beam Headlamp
13 Engine Control Module (Battery)
14 Fuel Injectors, Ignition Coils (Right Side)
15 Transmission Control Module (Battery)
16 Vehicle Back-up Lamps
17 Passenger’s Side Low-Beam Headlamp
18 Air Conditioning Compressor
19 Oxygen Sensors
20 Transmission Controls (Ignition)
21 Fuel Pump
22 Fuel System Control Module
23 Not Used
24 Not Used
25 Fuel Injectors, Ignition Coils (Left Side)
26 Trailer Park Lamps
27 Driver’s Side Park Lamps
28 Passenger’s Side Park Lamps
29 Fog Lamps
30 Horn
31 Passenger’s Side High-Beam Headlamp
32 Daytime Running Lamps
33 Driver’s Side High-Beam Headlamp
34 Not Used
35 Sunroof
36 Key Ignition System, Theft Deterrent System
37 Windshield Wiper
38 SEO B2 Upfitter Usage (Battery)
39 Electric Adjustable Pedals
40 Climate Controls (Battery)
41 Airbag System (Ignition)
42 Amplifier
43 Audio System
44 Miscellaneous (Ignition), Cruise Control
45 Tailgate Open/Close Assist
46 Airbag System (Battery)
47 OnStar®, Rear Seat Entertainment Display
48 Instrument Panel Cluster
49 Power Take-Off
50 Auxiliary Climate Control (Ignition), Compass-Temperature Mirror
51 Center High-Mounted Stoplamp (CHMSL)
52 Rear Defogger
53 Heated Mirrors
54 SEO B1 Upfitter Usage (Battery)
55 Cigarette Lighter, Auxiliary Power Outlet
56 Automatic Level Control Compressor Relay, SEO Upfitter Usage
57 Climate Controls (Ignition)
58 Engine Control Module, Secondary Fuel Pump (Ignition)

 

J-Case Usage
59 Cooling Fan 1
60 Automatic Level Control Compressor
61 Heavy Duty Anti-lock Brake System
62 Cooling Fan 2
63 Anti-lock Brake System 1
64 Starter
65 Stud 2 (Trailer Brakes)
66 Left Bussed Electrical Center 1
67 Not Used
68 Heated Windshield Washer System
69 Four-Wheel Drive System
70 Stud 1 (Trailer Connector Battery Power) (Optional – 40A Fuse Required)
71 Mid-Bussed Electrical Center 1
72 Climate Control Blower
73 Tailgate Open/Close Assist
74 Left Bussed Electrical Center 2

 

Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power

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