Tag: electricity

GMC Topkick (2008 – 2009) – fuse box diagram

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GMC Topkick (2008 – 2009) – fuse box diagram

Year of production: 2008, 2009

Instrument Panel Fuse Block

There are two instrument panel fuse blocks located behind the instrument panel on the passenger’s side of the vehicle.

GMC Topkick - fuse box - instrument panel (box 1)
GMC Topkick – fuse box – instrument panel (box 1)
GMC Topkick - fuse box - instrument panel (box 2)
GMC Topkick – fuse box – instrument panel (box 2)
Circuit Breaker Usage
1 Stoplamps
2 Not Used
3 Parking Lamps
4 Powertrain Control Module
5 Auxiliary Wiring
6 Heater/Air Conditioning
7 Hazard Warning Flashers
8 Power Post
9 Courtesy Lamps
10 Warning Lights, Gages and Indicators
11 Starter
12 Rear Axle/Four-Wheel-Drive
13 Trailer Turn Signals/Hazard Warning Flashers
14 Radio/Chime
15 Daytime Running Lamps
16 Airbag System
17 Exterior/Interior Lamps
18 Parking Brake
19 Accessory Power
20 Ignition 4
21 Sidemarker Lamps
22 Turn Signal/Backup Lamps
23 Transmission
24 Hydraulics/Air Brake
A Spare
B Spare

 

Fuse Usage
Blanj Not Used
RT PRK Passenger’s Side Parking Lamps
Blank Not Used
Blank Not Used
LT PARK Driver’s Side Parking Lamps
RT REAR TRN/STOP Passenger’s Side Rear Turn Signal/Stoplamp
LT REAR TRN/STOP Driver’s Side Rear Turn Signal/Stoplamp
RADIO Radio
Blank Not Used
Blank Not Used
PWR WNDW Power Windows

 

Relay Usage
ECU/PTO* Engine Control Unit/Power Take-Off *Diesel 7.8 DURAMAX®
BRK LAMP C4/C5 Brake Lamps, C6/C7/C8 Tractor/Trailer Wiring
DRL Daytime Running Lamps
IGN-4 Ignition
CHMSL Center High Mounted Stop Lamp
MRK LTS Sidemarker and Clearance Lamps
HTD/MIRR Heated Mirrors
HTR Diesel Heated Fuel
RT TRN TRLR Passenger’s Side Trailer Turn Signal
Blank Not Used
LT TRN TRLR Driver’s Side Trailer Turn Signal
Blank Not Used
Blank Not Used
Blank Not Used

Underhood Fuse Block

Fuse blocks are located in the engine compartment, on the passenger’s side of the vehicle.

Primary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment (primary box)
GMC Topkick – fuse box – engine compartment (primary box)
Fuse Usage
RR DEFOG Rear Defog
ENG 1 Engine 1
ENG 3 Engine 3 (L18/LF6/LF8)
PCM-B Powertrain Control Module
TCM Transmissions (LF8)
ENG 4 Engine 4 (LMM/LF6/LF8)
ENG 2 Engine 2 (L18/LMM)
HTD FUEL Heated Fuel (LMM)
BLANK Not Used
BLANK Not Used
NOTE 3 Fan Relay (LMM), Emissions (L18)
A/C COMP Air Conditioning Compressor
ABS 1 Anti-lock Brake System 1
ABS 2 Anti-lock Brake System 2
ABS 3 Anti-lock Brake System 3
ENGINE Engine
E/A PUMP Electronic/Automatic Pump
HORN Horn
NOTE 2 Fuel (L18/LMM), Electronic Control Module (LF6)
NOTE 3 Electronic Control Module (LF6)
STUD A Spare
STUD B Spare

 

Relay Usage
NOTE 1 LMM/L18 Fuel Pump Relay
IGN B RELAY Ignition Relay
STARTER RELAY Starter Relay
HORN RELAY Horn Relay
IGN A RELAY Ignition Relay
PTO/ECU* RELAY Power Take-Off/Engine Control Unit (*Diesel 7.8L LF8)
REVERSE RELAY Reverse Relay
FAN RELAY Fan Relay (LMM)

Secondary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment - (secondary box)
GMC Topkick – fuse box – engine compartment – (secondary box)
Fuse Usage
IGN 1 Ignition 1
IGN 4 Ignition 4
IGN 3 Ignition 3
BATT/HAZ Battery/Hazard Warning Flashers
HEADLAMP Headlamps
LIGHTING Interior/Exterior Lamps
HVAC Climate Control System
NOTE C4/C5 Electric Brake, C6/C7/C8 Brake Lamps

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

GMC Topkick (2007) – fuse box diagram

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GMC Topkick (2007) – fuse box diagram

Year of production: 2007

Instrument Panel Fuse Block

There are two instrument panel fuse blocks located behind the instrument panel on the passenger’s side of the vehicle.

GMC Topkick - fuse box - instrument panel (box 1)
GMC Topkick – fuse box – instrument panel (box 1)
GMC Topkick - fuse box - instrument panel (box 2)
GMC Topkick – fuse box – instrument panel (box 2)
Circuit Breaker Usage
1 Stoplamps
2 Center High-Mounted Stoplamp
3 Parking Lamps
4 Powertrain Control Module
5 Auxiliary Wiring
6 Heater/Air Conditioning
7 Hazard Warning Flashers
8 Power Post
9 Courtesy Lamps
10 Warning Lights, Gages and Indicators
11 Starter
12 Rear Axle/Four-Wheel-Drive
13 Trailer Turn Signals/Hazard Warning Flashers
14 Radio/Chime
15 Daytime Running Lamps
16 Airbag System
17 Exterior/Interior Lamps
18 Parking Brake
19 Accessory Power
20 Ignition 4
21 Sidemarker Lamps
22 Turn Signal/Backup Lamps
23 Transmission
24 Hydraulics/Air Brake
A Spare
B Spare

 

Fuse Usage
Blanj Not Used
RT PRK Passenger’s Side Parking Lamps
Blank Not Used
Blank Not Used
LT PARK Driver’s Side Parking Lamps
RT REAR TRN/STOP Passenger’s Side Rear Turn Signal/Stoplamp
LT REAR TRN/STOP Driver’s Side Rear Turn Signal/Stoplamp
RADIO Radio
Blank Not Used
Blank Not Used
PWR WNDW Power Windows

 

Relay Usage
ECU/PTO* Engine Control Unit/Power Take-Off *Diesel 7.8 DURAMAX®
BRK LAMP C4/C5 Brake Lamps, C6/C7/C8 Tractor/Trailer Wiring
DRL Daytime Running Lamps
IGN-4 Ignition
CHMSL Center High Mounted Stop Lamp
MRK LTS Sidemarker and Clearance Lamps
HTD/MIRR Heated Mirrors
HTR Diesel Heated Fuel
RT TRN TRLR Passenger’s Side Trailer Turn Signal
Blank Not Used
LT TRN TRLR Driver’s Side Trailer Turn Signal
Blank Not Used
Blank Not Used
Blank Not Used

Underhood Fuse Block

Fuse blocks are located in the engine compartment, on the passenger’s side of the vehicle.

Primary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment (primary box)
GMC Topkick – fuse box – engine compartment (primary box)
Fuse Usage
RR DEFOG Rear Defog
ENG 1 Engine 1
ENG 3 Engine 3
PCM-B Powertrain Control Module
BLANK Not Used
ENG 4 Engine 4
ENG 2 Engine 2
HTD FUEL Heated Fuel
BLANK Not Used
BLANK Not Used
02A Emissions
A/C COMP Air Conditioning Compressor
ABS 1 Anti-lock Brake System 1
ABS 2 Anti-lock Brake System 2
ABS 3 Anti-lock Brake System 3
ENGINE Engine
E/A PUMP Electronic/Automatic Pump
HORN Horn
NOTE 2 L18 Fuel, LG4 Powertrain Control Valve, LG5 Electronic Control Module
NOTE 3 L18 Fuel, LG4 Powertrain Control Valve, LG5 Electronic Control Module
STUD A Spare
STUD B Spare

 

Relay Usage
NOTE 1 LG4 Powertrain Control Valve, L18 Fuel Pump, LG5 Heated Fuel
IGN B Ignition
STARTER Starter
HORN Horn
IGN A Ignition
PTO/ECU* Power Take-Off/Engine Control Unit *Diesel 7.8L DURAMAX®™
REVERSE Reverse
NEUTRAL START Neutral Start

Secondary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment - (secondary box)
GMC Topkick – fuse box – engine compartment – (secondary box)
Fuse Usage
IGN 1 Four-Wheel Drive Module
IGN 4 Ignition 4
IGN 3 Ignition 3
BATT/HAZ Battery/Hazard Warning Flashers
HEADLAMP Headlamps
LIGHTING Interior/Exterior Lamps
HVAC Climate Control System
NOTE C4/C5 Electric Brake, C6/C7/C8 Brake Lamps

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

GMC Topkick (2006) – fuse box diagram

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GMC Topkick (2006) – fuse box diagram

Year of production: 2006

Instrument Panel Fuse Block

There are two instrument panel fuse blocks located behind the instrument panel on the passenger’s side of the vehicle.

GMC Topkick - fuse box - instrument panel (box 1)
GMC Topkick – fuse box – instrument panel (box 1)
GMC Topkick - fuse box - instrument panel (box 2)
GMC Topkick – fuse box – instrument panel (box 2)
Circuit Breaker Usage
1 Stoplamps
2 Center High-Mounted Stoplamp
3 Parking Lamps
4 Powertrain Control Module
5 Auxiliary Wiring
6 Heater/Air Conditioning
7 Hazard Warning Flashers
8 Power Post
9 Courtesy Lamps
10 Warning Lights, Gages and Indicators
11 Starter
12 Rear Axle/Four-Wheel-Drive
13 Trailer Turn Signals/Hazard Warning Flashers
14 Radio/Chime
15 Daytime Running Lamps
16 Airbag System
17 Exterior/Interior Lamps
18 Parking Brake
19 Accessory Power
20 Ignition 4
21 Sidemarker Lamps
22 Turn Signal/Backup Lamps
23 Transmission
24 Hydraulics/Air Brake
A Spare
B Spare

 

Fuse Usage
HTD/MIRR Heated Mirrors
Blank Not Used
RT TRN TRLR Passenger’s Side Trailer Turn Signal
Blank Not Used
LT TRN TRLR Driver’s Side Trailer Turn Signal
Blank Not Used
BRK Brake Warning Lamp
RT PRK Passenger’s Side Parking Lamps
Blank Not Used
Blank Not Used
Blank Not Used
LT PARK Driver’s Side Parking Lamps
Blank Not Used
RT REAR TRN/STOP Passenger’s Side Rear Turn Signal/Stoplamp
LT REAR TRN/STOP Driver’s Side Rear Turn Signal/Stoplamp
RADIO Radio
Blank Not Used
Blank Not Used
Blank Not Used
PWR WNDW Power Windows

 

Relay Usage
ECU/PTO* Engine Control Unit/Power Take-Off *Diesel 7.8 DURAMAX®
BRK LAMP C4/C5 Brake Lamps, C6/C7/C8 Tractor/Trailer Wiring
DRL Daytime Running Lamps
IGN-4 Ignition
CHMSL Center High Mounted Stop Lamp
MRK LTS Sidemarker and Clearance Lamps

Underhood Fuse Block

Fuse blocks are located in the engine compartment, on the passenger’s side of the vehicle.

Primary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment (primary box)
GMC Topkick – fuse box – engine compartment (primary box)
Fuse Usage
RR DEFOG Rear Defog
ENG 1 Engine 1
ENG 3 Engine 3
PCM-B Powertrain Control Module
BLANK Not Used
ENG 4 Engine 4
ENG 2 Engine 2
HTD FUEL Heated Fuel
BLANK Not Used
BLANK Not Used
02A Emissions
A/C COMP Air Conditioning Compressor
ABS 1 Anti-lock Brake System 1
ABS 2 Anti-lock Brake System 2
ABS 3 Anti-lock Brake System 3
ENGINE Engine
E/A PUMP Electronic/Automatic Pump
HORN Horn
NOTE 2 L18 Fuel, LG4 Powertrain Control Valve, LG5 Electronic Control Module
NOTE 3 L18 Fuel, LG4 Powertrain Control Valve, LG5 Electronic Control Module
STUD A Spare
STUD B Spare

 

Relay Usage
NOTE 1 LG4 Powertrain Control Valve, L18 Fuel Pump, LG5 Heated Fuel
IGN B Ignition
STARTER Starter
HORN Horn
IGN A Ignition
PTO/ECU* Power Take-Off/Engine Control Unit *Diesel 7.8L DURAMAX®™
REVERSE Reverse
NEUTRAL START Neutral Start

Secondary Underhood Fuse Block

GMC Topkick - fuse box - engine compartment - (secondary box)
GMC Topkick – fuse box – engine compartment – (secondary box)
Fuse Usage
IGN 1 Four-Wheel Drive Module
IGN 4 Ignition 4
IGN 3 Ignition 3
BATT/HAZ Battery/Hazard Warning Flashers
HEADLAMP Headlamps
LIGHTING Interior/Exterior Lamps
HVAC Climate Control System
NOTE C4/C5 Electric Brake, C6/C7/C8 Brake Lamps

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

GMC Terrain (2017) – fuse box diagram

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GMC Terrain (2017) – fuse box diagram

Year of production: 2017

Engine Compartment Fuse Block

GMC Terrain - fuse box - engine compartment
GMC Terrain – fuse box – engine compartment
Fuses Usage
1 Cooling fan 1
2 Cooling fan 2
3 Brake Booster
4 Right power windows
5 Memory Seat Module
6 Left power seat
7 Instrument panel fuse block 1
8 Rear Defogger
9 Starter
10 AIR Pump Motor
11 Instrument panel fuse block 2
12 Sunroof
13 ABS pump
14 Instrument panel fuse block 3
15 Left power windows
16 ABS module
17 Transmission control module battery
18 Trailer parking light
19 AIR pump solenoid
20 Engine control module battery
21 Canister vent
22 Left trailer side (if equipped)
23 Liftgate module
24 Power lumbar
25 Right trailer side (if equipped)
26 Rear accessory power outlet
27 Memory mirror module
28 Regulated voltage control battery sensor
29 Front wiper
30 Rear wiper
31 A/C
32 Rear latch
33 Heated mirrors
34 Horn
35 Right high-beam headlamp
36 Left high-beam headlamp
37 Ignition coil – even
38 Ignition coil – odd
39 Windshield washer
40 Front fog lamps (if equipped)
41 Post catalytic converter O2 sensor
42 Engine control module
43 Pre-catalytic converter O2 sensor
44 Transmission control module
45 Mirror
46 Fuel system control module/Ignition
47 —
48 Rear drive module
49 Lift gate module logic
50 Instrument panel fuse block/Ignition
51 Front heated seat
52 Fuel system control module
53 Engine control module
54 Rear vision camera
55 Electric power steering
56 AIR pump solenoid
57 Brake booster
58 Cooling fan – low
59 High-beam headlamps
60 Cooling fan control
61 Wiper On/Off control
62 A/C
63 Rear defogger
64 Wiper speed
65 Fog lamps
66 Engine control
67 Starter
68 Run/Crank
69 Cooling fan – high
70 AIR pump motor
77 Right power seat
78 Passenger power lumbar

 

Instrument Panel Fuse Block

The instrument panel fuse block is located on the passenger side panel of the center console. To access the fuses, open the fuse panel door from the passenger side by pulling it out.

GMC Terrain - fuse box - instrument panel
GMC Terrain – fuse box – instrument panel
Mini Fuses Usage
1 Steering Wheel Dimming
2 —
3 —
4 Body Control Module 1
5 Infotainment
6 Body Control Module 7
7 Noise Control Module
8 Body Control Module 4
9 Radio
10 —
11 Rear parking assist module
12 HVAC/Battery
13 Front auxiliary power
14 HVAC/Ignition
15 Display
16 Body Control  Module 5
17 Rear auxiliary power
18 Instrument panel/Ignition
19 Universal Garage Door Opener
20 Body Control Module 6
21 —
22 Sensing/Diagnostic module/Ignition
23 Front vision camera
24 —
25 Transmission gear shift position indicator
26 —
27 —
28 —
29 Front blower motor
30 Body Control Module 3
31 Amplifier
32 Discrete Logic Ignition Switch
33 Communications Integration Module
34 Body Control Module 2
35 Sensing and Diagnostic Module Battery
36 Data Link Connection
37 Instrument Panel Cluster Battery
38 Passenger Sensing System modul
39 —
40 Body control module 8
41 Logistic relay (if equipped)
42 Retained accessory power relay

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

GMC Terrain (2013 – 2016) – fuse box diagram

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GMC Terrain (2013 – 2016) – fuse box diagram

Year of production: 2013, 2014, 2015, 2016

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 Brake Booster
4 Power Windows – Right
5 Memory Seat Module
6 Power Seat – Left
7 Instrument Panel Fuse Block 1
8 Rear Defogger
9 Starter
10 AIR Pump Motor
11 Instrument Panel Fuse Block 2
12 Sunroof
13 Antilock Brake System Pump
14 Instrument Panel Fuse Block 3
15 Power Windows – Left
16 Antilock Brake System Module
77 Power Seat – Right

 

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

 

Midi Fuse Usage
55 Electric Power Steering

 

Micro Relays Usage
56 AIR Pump Solenoid
57 Rear Defogger
58 Cooling Fan Low
59 Headlamp High Beam
60 Cooling Fan Control
61 Wiper On/Off Control
62 Air Conditioning Compressor
63 Rear Defogger
64 Wiper Speed
65 Fog Lamp
66 Engine Control
67 Starter
68 Run/Crank

 

Mini Relays Usage
69 Cooling Fan High
70 AIR Pump Motor

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 Dimming
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 Spare
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 Universal Garage Door Opener
20 Body Control Module 6
21 Spare
22 Sensing and Diagnostic Module Ignition
23 Front Camera
24 Spare
25 Transmission Gear Shift Position Indicator
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 Sensing and Diagnostic Module Battery
36 Data Link Connection
37 Instrument Panel Cluster Battery
38 Passenger Sensing System
39 Spare

 

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

 

Relays Usage
41 Logistic Relay (If Equipped)
42 Retained Accessory Power Relay

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

GMC Terrain (2011 – 2012) – fuse box diagram

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GMC Terrain (2011 – 2012) – fuse box diagram

Year of production: 2011, 2012

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 Brake Booster
4 Power Windows – Right
5 Memory Seat Module
6 Power Seat – Left
7 Instrument Panel Fuse Block 1
8 Rear Defogger
9 Starter
10 AIR Pump Motor
11 Instrument Panel Fuse Block 2
12 Sunroof
13 Antilock Brake System Pump
14 Instrument Panel Fuse Block 3
15 Power Windows – Left
16 Antilock Brake System Module

 

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

 

Midi Fuse Usage
55 Electric Power Steering

 

Micro Relays Usage
56 AIR Pump Solenoid
57 Rear Defogger
58 Cooling Fan Low
59 Headlamp High Beam
60 Cooling Fan Control
61 Wiper On/Off Control
62 Air Conditioning Compressor
63 Rear Defogger
64 Wiper Speed
65 Fog Lamp
66 Engine Control
67 Starter
68 Run/Crank

 

Mini Relays Usage
69 Cooling Fan High
7066 AIR Pump Motor

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 Special Equipment Order 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 Personal Device Interface Module
20 Body Control Module 6
21 Special Equipment Order Retained Accessory Power
22 Sensing and Diagnostic Module Ignition
23 Spare
24 Spare
25 Transmission Gear Shift Position Indicator
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 Sensing and Diagnostic Module Battery
36 Data Link Connection
37 Instrument Panel Cluster Battery
38 Passenger Sensing System
39 Spare

 

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

 

Relays Usage
41 Logistic Relay (If Equipped)
42 Retained Accessory Power Relay

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

GMC Terrain (2010) – fuse box diagram

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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

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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

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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

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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.