Chevrolet Trailbrazer (2003 – 2004) – fuse box diagram
Year of production: 2003,2004
Engine Compartment Fuse Block
The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle.
Engine L6
Mini fuses |
Usage |
1 |
Electrically-Controlled Air Suspension |
2 |
Passenger’s Side High-Beam Headlamp |
3 |
Passenger’s Side Low-Beam Headlamp |
4 |
Back-Up Trailer Lamps |
5 |
Driver’s Side High-Beam Headlamp |
6 |
Driver’s Side Low-Beam Headlamp |
7 |
Rear Window Washer, Headlamp Washer |
8 |
Automatic Transfer Case |
9 |
Windshield Wipers |
10 |
Powertrain Control Module B |
11 |
Fog Lamps |
12 |
Stop Lamp |
13 |
Cigarette Lighter |
14 |
Ignition Coils |
15 |
Blank |
16 |
TBD — Ignition 1 |
17 |
Crank |
18 |
Air Bag |
19 |
Trailer Electric Brake |
20 |
Cooling Fan |
21 |
Horn |
22 |
Ignition E |
23 |
Electronic Throttle Control |
24 |
Instrument Panel Cluster, Driver Information Center |
25 |
Automatic Shift Lock Control System |
26 |
Backup |
27 |
Engine 1 |
28 |
Powertrain Control Module 1 |
29 |
Oxygen Sensor |
30 |
Air Conditioning |
31 |
Truck Body Controller |
32 |
Trailer |
33 |
Anti-Lock Brakes (ABS) |
34 |
Ignition A |
35 |
Blower Motor |
36 |
Ignition B |
50 |
Passenger’s Side Trailer Turn |
51 |
Driver’s Side Trailer Turn |
52 |
Hazard Flashers |
53 |
Electric Adjustable Pedal |
54 |
A.I.R. Solenoid |
56 |
A.I.R. Pump |
Relays |
Usage |
37 |
Headlamp Washer |
38 |
Rear Window Washer |
39 |
Fog Lamps |
40 |
Horn |
41 |
Fuel Pump |
42 |
Windshield Washer |
43 |
High-Beam Headlamp |
44 |
Air Conditioning |
45 |
Cooling Fan |
46 |
Headlamp Driver Module |
47 |
Starter |
49 |
Electric Adjustable Pedal |
55 |
A.I.R. Solenoid |
Miscellaneous |
Usage |
48 |
Instrument Panel Battery |
49 |
Blank |
Engine V8
Mini fuses |
Usage |
1 |
Electrically-Controlled Air Suspension |
2 |
Passenger’s Side High-Beam Headlamp |
3 |
Passenger’s Side Low-Beam Headlamp |
4 |
Back-Up Trailer Lamps |
5 |
Driver’s Side High-Beam Headlamp |
6 |
Driver’s Side Low-Beam Headlamp |
7 |
Rear Window Washer, Headlamp Washer |
8 |
Automatic Transfer Case |
9 |
Windshield Wipers |
10 |
Powertrain Control Module B |
11 |
Fog Lamps |
12 |
Stop Lamp |
13 |
Cigarette Lighter |
14 |
Ignition Coils |
15 |
Canister Vent |
16 |
TBD — Ignition 1 |
17 |
Crank |
18 |
Air Bag |
19 |
Trailer Electric Brake |
20 |
Cooling Fan |
21 |
Horn |
22 |
Ignition E |
23 |
Electronic Throttle Control |
24 |
Instrument Panel Cluster, Driver Information Center |
25 |
Automatic Shift Lock Control System |
26 |
Backup |
27 |
Engine 1 |
28 |
Powertrain Control Module 1 |
30 |
Air Conditioning |
31 |
Truck Body Controller |
32 |
Trailer |
33 |
Anti-Lock Brakes (ABS) |
34 |
Ignition A |
35 |
Blower Motor |
36 |
Ignition B |
50 |
Passenger’s Side Trailer Turn |
51 |
Driver’s Side Trailer Turn |
52 |
Hazard Flashers |
53 |
Oxygen Sensor Bank B |
54 |
Oxygen Sensor Bank A |
55 |
Injector Bank A |
56 |
Injector Bank B |
57 |
Electric Adjustable Pedal |
Relays |
Usage |
37 |
Headlamp Washer |
38 |
Rear Window Washer |
39 |
Fog Lamps |
40 |
Horn |
41 |
Fuel Pump |
42 |
Windshield Washer |
43 |
High-Beam Headlamp |
44 |
Air Conditioning |
45 |
Cooling Fan |
46 |
Headlamp Driver Module |
47 |
Starter |
49 |
Electric Adjustable Pedal |
58 |
Ignition 1 |
Miscellaneous |
Usage |
48 |
Instrument Panel Battery |
Rear Underseat Fuse Block
The rear underseat fuse block is located under the rear seat on the driver’s side of the vehicle.
Trailblazer
Fuses |
Usage |
01 |
Right Door Control Module |
02 |
Left Door Control Module |
03 |
Liftgate Module 2 |
04 |
Truck Body Controller 3 |
05 |
Rear Fog Lamps |
06 |
Blank |
07 |
Truck Body Controller 2 |
08 |
Power Seats |
09 |
Rear Wiper |
10 |
Driver Door Module |
11 |
Amplifier |
12 |
Passenger Door Module |
13 |
Rear Climate Controls |
14 |
Left Rear Parking Lamps |
15 |
Blank |
16 |
Vehicle Center High-Mounted Stop Lamp |
17 |
Right Rear Parking Lamps |
18 |
Locks |
19 |
Liftgate Module/Driver Seat Module |
20 |
Sunroof |
21 |
Lock |
23 |
Blank |
24 |
Unlock |
25 |
Blank |
26 |
Blank |
27 |
OH Battery/OnStar System |
29 |
Rainsense Wipers |
30 |
Parking Lamps |
31 |
Truck Body Controller Accessory |
32 |
Truck Body Controller 5 |
33 |
Front Wipers |
34 |
Vehicle Stop |
35 |
Blank |
36 |
Heat Ventilation Air Conditioning B |
37 |
Front Parking Lamps |
38 |
Left Turn Signal |
39 |
Heat Ventilation Air Conditioning 1 |
40 |
Truck Body Controller 4 |
41 |
Radio |
42 |
Trailer Park |
43 |
Right Turn Signal |
44 |
Heat Ventilation Air Conditioning |
45 |
Rear Fog Lamps |
46 |
Auxiliary Power 1 |
47 |
Ignition 0 |
48 |
Four-Wheel Drive |
49 |
Blank |
50 |
Truck Body Controller Ignition |
51 |
Brakes |
52 |
Truck Body Controller Run |
TrailBlazer EXT
Fuses |
Usage |
01 |
Right Door Control Module |
02 |
Left Door Control Module |
03 |
Liftgate Module 2 |
04 |
Truck Body Controller 3 |
05 |
Rear Fog Lamps |
06 |
Blank |
07 |
Truck Body Controller 2 |
08 |
Power Seats |
09 |
Rear Wiper |
10 |
Driver Door Module |
11 |
Amplifier |
12 |
Passenger Door Module |
13 |
Rear Climate Controls |
14 |
Left Rear Parking Lamps |
15 |
Blank |
16 |
Vehicle Center High-Mounted Stop Lamp |
17 |
Right Rear Parking Lamps |
18 |
Locks |
19 |
Liftgate Module/Driver Seat Module |
20 |
Vent Window |
21 |
Lock |
22 |
Retained Accessory Power |
23 |
Blank |
24 |
Unlock |
25 |
Blank |
26 |
Blank |
27 |
OH Battery/OnStar System |
28 |
Sunroof |
29 |
Rainsense Wipers |
30 |
Parking Lamps |
31 |
Truck Body Controller Accessory |
32 |
Truck Body Controller 5 |
33 |
Front Wipers |
34 |
Vehicle Stop |
35 |
Blank |
36 |
Heat Ventilation Air Conditioning B |
37 |
Front Parking Lamps |
38 |
Left Turn Signal |
39 |
Heat Ventilation Air Conditioning 1 |
40 |
Truck Body Controller 4 |
41 |
Radio |
42 |
Trailer Park |
43 |
Right Turn Signal |
44 |
Heat Ventilation Air Conditioning |
45 |
Rear Fog Lamps |
46 |
Auxiliary Power 1 |
47 |
Ignition 0 |
48 |
Four-Wheel Drive |
49 |
Blank |
50 |
Truck Body Controller Ignition |
51 |
Brakes |
52 |
Truck Body Controller Run |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.