Hummer H3 Fuse Box Diagram

Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow or ice, the wiper will stop until the motor cools. If the overload is caused by some electrical problem, be sure to get it fixed.

Power Windows and Other Power Options
Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away.

Power and Heated Seat Circuit Breakers
There is a circuit breaker located underneath the driver’s side front seat that controls the power and heated seat functions.

Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without — like the radio or cigarette lighter — and use its fuse, if it is the correct amperage. Replace it as soon as you can.

Engine Compartment Fuse Block

The engine compartment fuse block is located on the driver’s side of the engine compartment.	To remove the cover, push in on the tabs at the ends of the cover and lift. To reinstall the cover, line up the tabs and push down on the cover until the tabs clicks into place.

№	Description
1	Heated Seats
2	Grille Guard
3	Fuel Pump
4	Roof Lamp
5	Battery Ignition Switch
6	Front Wiper
7	Regulated Voltage Control Power
8	Power Locks
9	Sunroof, Front Washer Pump
10	Accessories (SPO)
11	Air Compressor
12	Transfer Case Control Module
13	Radio, Heating, Ventilation, Air Conditioning Display
14	Body Control Module
15	Rear Wiper Motor
16	Rear Wiper Pump Switch
17	Air Injection Reactor (AIR) Solenoid
18	Spare 6
19	Cluster
20	Rear Turn Signal, Hazard Signal
21	Powertrain Control Module 1
22	Mass Air Flow Sensor, Purge Solenoid
23	Injector
24	Fog Lamp
25	Powertrain Control Module B
26	Spare 4
27	Airbags
28	Back-up Lamps
29	Anti-lock Brakes, StabiliTrak
30	Rear Window Defogger
31	Canister Vent
32	Regulated Voltage Control VSense+
33	Ignition 1
34	Transmission
35	Cruise, Inside Rearview Mirror
36	Horn
37	Driver’s Side Rear Park Lamp
38	Amplifier
39	Reduced Intensity Low-Beam Daytime Running Lamps
40	Passenger’s Side Headlamp
41	Driver’s Side Headlamp
42	Trailer Back-Up Lamp
43	Front Park Lamps
44	Air Injection Reactor (AIR) Solenoid
45	Auxiliary Power 2
46	Electronic Throttle Control
47	Oxygen Sensor
48	Air Conditioning Clutch
49	Passenger’s Side Rear Park Lamp
50	XM™ Satellite Radio
51	Auxiliary Power 1
52	StabiliTrak®, Anti-lock Brakes
53	Power Heater Switch
54	Stop
55	Trailer Parking Lamps
56	Front Turn Signal, Hazard Signal
57	Power Sunroof
58	Transfer Case Control Module Switch
59	Climate Control
60	Spare 8
61	Power Seats
62	Air Pump
63	Passenger’s Side Power Window
64	Anti-lock Brakes, StabiliTrak®2 Solenoid
65	Wiper Diode
66	Fuel Pump
67	Anti-lock Brakes, StabiliTrak®1 Motor
68	Driver’s Side Power Window
69	Fog Lamp
70	High, Low Beam Headlamps
71	Rear Defogger
72	Windshield Wiper On/Off
73	Windshield Wiper High/Low
74	Horn
75	Headlamp
76	Air Conditioning Clutch
77	Powertrain Control Module
78	Run, Crank
79	Reduced Intensity Low-Beam Daytime Running Lamps
80	Air Injection Reactor (AIR) Solenoid
81	Powertrain (Starter)
82	Climate Control Fan
83	Electronic Brake Controller
84	Trailer B+ Fuse
85	Starter
86	Spare 2
87	Heating, Ventilation, Air Conditioning
88	Retained Accessory Power
89	Park Lamp
90	Air Conditioning Clutch Diode
91	Megafuse