Chevrolet TrailBlazer 2002-2009 Fuse Layout

In this article we take a look at the first generation Chevrolet TrailBlazer, produced from 2002 to 2009. Here you can find the Chevrolet TrailBlazer 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 fuse box outline, get information on the location of the fuse boxes inside the car and learn about the allocation of each fuse (fuse layout) and relay.

The fuses for the cigarette lighter (socket) in the Chevrolet TrailBlazer are fuse №13 (cigarette lighter) in the underfloor fuse box and fuses №15 (2002-2003, auxiliary power 2), №46 (auxiliary power 1) in the rear underfloor fuse box.

Engine Compartment Fuse Box

Fuse box location

It is located in the engine compartment on the driver’s side, under two covers.

Fuse box diagrams (L6 Engine)

L6 engine, 2002-2003

Assignment of the fuses and relay in the Underhood Fuse Box, L6 engine (2002, 2003)

№	Usage
1	Electrically-Controlled Air Suspension
2	Passenger’s Side Hiqh-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	WASH
8	Automatic Transfer Case
g	Windshield Wipers
10	Powertrain Control Module B
11	Fog Lamps
12	Stop Lamp
13	Cigarette Lighter
14	Ignition Coils
15	Air Suspension Ride
16	TBD-Ignition 1
17	Crank
18	Air Bag
19	Electric Brake
20	Cooling Fan
21	Horn
22	Ignition E
23	Electronic Throttle Control
24	Instrument Panel Cluster, Dnver Information Center
25	Automatic Shift Lock Control System
26	Engine 1
27	Back-Up
28	Powertrain ControJ 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
Relays
37	Blank
38	Rear Window Washer
39	Fog Lamps
40	Horn
41	Fuel Pump
42	Windshield Wipers/Washer
43	High-Beam Headlamp
44	Air Conditioning
45	Cooling Fan
46	Headlamp Driver Modulo
47	Starter
Miscellaneous
48	Instrument Panel Battery
49	Fuse Puller

L6 engine, 2004-2006

Assignment of the fuses and relay in the Underhood Fuse Box, L6 engine (2004, 2005, 2006)

№	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 Washer
10	Powertrain Control Module B
11	Fog Lamps
12	Stoplamp
13	Cigarette Lighter
14	2004-2005: Ignition Coils
15	Electric Adjustable Pedal
16	Truck Body Controller, Ignition 1
17	Crank
18	Airbag
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	2004: Backup 2005-2006: Engine 1
27	2004: Engine 1 2005-2006: Backup
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	2004: Electric Adjustable Pedal 2005-2006: Headlamp Driver Module
54	Air Injection Reactor (AIR) Solenoid
56	Air Injection Reactor (AIR) Pump
Relays
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	Air Injection Reactor (AIR) Solenoid
57	Powertrain (2006)
58	Vehicle Stability EnhancementSystem (StabiliTrak) (2006)
Miscellaneous
48	Instrument Panel Battery

L6 engine, 2007-2008

Assignment of the fuses and relay in the Underhood Fuse Box, L6 engine (2007, 2008)

№	Usage
1	Electrically-Controlled Air Suspension
2	Passenger Side High-Beam Headlamp
3	Passenger Side Low-Beam Headlamp
4	Back-Up Trailer Lamps
5	Driver Side High-Beam Headlamp
6	Driver Side Low-Beam Headlamp
7	Windshield Wiper
8	Automatic Transfer Case
9	Windshield Washer
10	Powertrain Control Module B
11	Fog Lamps
12	Stoplamp
13	Cigarette Lighter
14	Not Used
15	Electric Adjustable Pedal
16	Truck Body Controller, Ignition 1
17	Crank
18	Airbag
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	Transmission Control Module (TCM) Canister
27	Backup
28	Powertrain Control Module 1
29	Oxygen Sensor
30	Air Conditioning
31	Truck Body Controller 1
32	Trailer
33	Antilock Brakes (ABS)
34	Ignition A
35	Blower Motor
36	Ignition B
50	Passenger Side Trailer Turn
51	Driver Side Trailer Turn
52	Hazard Flashers
53	Headlamp Driver Module
54	Air Injection Reactor (AIR) Solenoid
56	Air Injection Reactor (AIR) Pump
58	Vehicle Stability Enhancement System (StabiliTrak)
59	Regulated Voltage Control
Relays
37	Headlamp Washer
38	Rear Window Wiper/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	Air Injection Reactor (AIR) Solenoid
57	Powertrain
Miscellaneous
48	Instrument Panel Battery

Underhood Fuse Box (2009)

Assignment of the fuses and relay in the Underhood Fuse Box (2009)

№	Usage
1	Electrically-Controlled Air Suspension
2	Passenger Side High-Beam Headlamp
3	Passenger Side Low-Beam Headlamp
4	Back-Up Trailer Lamps
5	Driver Side High-Beam Headlamp
6	Driver Side Low-Beam Headlamp
7	Windshield Wiper
8	Active Transfer Case
9	Windshield Washer
10	Powertrain Control Module B
11	Fog Lamps
12	Stoplamp
13	Cigarette Lighter
14	Ignition Coils
15	Transmission Control Module Canister
16	Truck Body Controller, Ignition 1
17	Crank
18	Airbag
19	Trailer Electric Brake
21	Horn
22	Ignition E
23	Electronic Throttle Control
24	Instrument Panel Cluster, Driver Information Center
25	Brake Transmission Shift Interlock
26	Engine 1
27	Backup
28	Engine Control Module 1
29	Engine Control Module
30	Air Conditioning
31	Injector A
32	Trailer
33	Antilock Brakes (ABS)
34	Ignition A
35	Blower
36	Ignition B
50	Passenger Side Trailer Turn
51	Driver Side Trailer Turn
52	Hazard Flashers
53	Transmission
54	Oxygen Sensor B
55	Oxygen Sensor A
56	Injector B
57	Headlamp Driver Module
58	Body Controller 1
59	Electric Adjustable Pedals
61	Vehicle Stability Enhancement System
62	Regulated Voltage Control
63	Air Solenoid
64	Air Pump
Relays
37	Headlamp Wiper
38	Rear Window Wiper/Washer
39	Fog Lamps
40	Horn
41	Fuel Pump
42	Windshield Washer
43	High-Beam Headlamp
44	Air Conditioning
46	Headlamp Driver Module
47	Starter
49	Electric Adjustable Pedal
60	Powertrain
69	Air Solenoid
Miscellaneous
48	Instrument Panel Battery

Fuse box diagrams (V8 Engine)

V8 engine, 2003-2004

Assignment of the fuses and relay in the Underhood Fuse Box, V8 engine (2003, 2004)

№	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 Washer
10	Powertrain Control Module B
11	Fog Lamps
12	Stop Lamp
13	Cigarette Lighter
14	Ignition Coils
15	Canister Vent
16	TBC-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	2003: Engine 1 2004: Backup
27	2003: Backup 2004: 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
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
48	Instrument Panel Battery

V8 engine, 2005-2008

Assignment of the fuses and relay in the Underhood Fuse Box, V8 engine (2005-2008)

№	Usage
1	Electrically-Controlled Air Suspension
2	Passenger Side High-Beam Headlamp
3	Passenger Side Low-Beam Headlamp
4	Back-Up-Trailer Lamps
5	Driver Side High-Beam Headlamp
6	Driver Side Low-Beam Headlamp
7	2005-2006: Rear Window Washer, HeadlampWasher 2007-2008: Windshield Wiper
8	Automatic Transfer Case
9	Windshield Washer
10	Powertrain Control Module B
11	Fog Lamps
12	Stoplamp
13	Cigarette Lighter
14	Ignition Coils
15	2005-2006: Canister Vent 2007-2008: Transmission Control Module / Canister Vent
16	Truck Body Controller, Ignition 1
17	Crank
18	Airbag
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	Engine 1
27	Backup
28	Powertrain Control Module 1
29	Powertrain Control Module
30	Air Conditioning
31	Injector Bank A
32	Trailer
33	Antilock Brakes (ABS)
34	Ignition A
35	Blower Motor
36	Ignition B
50	Passenger Side Trailer Turn
51	Driver Side Trailer Turn
52	Hazard Flashers
53	Transmission
54	Oxygen Sensor Bank B
55	Oxygen Sensor Bank A
56	Injector Bank B
57	Headlamp Driver Module
58	Body Controller 1
59	Electric Adjustable Pedal
61	Vehicle Stability Enhancement System (StabiliTrak)
62	Regulated Voltage Control
Relays
37	Headlamp Washer
38	Rear Window Wiper
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
60	Powertrain
Miscellaneous
48	Instrument Panel Battery

Rear Underseat Fuse Box

Fuse box location

It is located under of the left rear seat, under two covers.

Fuse box diagram (TrailBlazer)

Assignment of the fuses in the Rear Underseat Box (TrailBlazer, 2002-2009)

№	Usage
01	Passenger Door Control Module
02	Driver Door Control Module
03	Liftgate Module 2
04	Truck Body Controller 3
05	Rear Fog Lamps
06	2002-2003: Liftgate Module/Driver Seat Module 2004-2009: Blank
07	Truck Body Controller 2
08	Power Seats
09	2002-2003: Blank 2003-2009: Rear Wiper
10	Driver Door Module
11	Amplifer
12	Passenger Door Module
13	Rear Climate Controls
14	Driver Side Rear Parking Lamps
15	2002-2003: Auxiliarv Power 2 2003-2009: Blank
16	Vehicle Center High-Mounted Stoplamp (CHMSL)
17	Passenger Side Rear Parking Lamps
18	Locks
19	2002-2003: Blank 2003-2009: Liftgate Module/Driver Seat Module
20	2002-2004: Sunroof 2005-2009: Blank
21	Lock
23	Blank
24	Unlock
25	Blank
26	Blank
27	OnStar Overhead Battery, OnStar System
28	2002-2004: Blank 2005-2009: Sunroof
29	Not Used
30	Parking Lamps
31	Truck Body Controller Accessory
32	Truck Body Controller 5
33	Front Wipers
34	Vehicle Stop
35	2002-2004: Blank 2005-2009: Transmission Control Module
36	Heat Ventilation Air Conditioning B
37	Front Parking Lamps
38	Driver Side Turn Signal
39	Heat Ventilation Air Conditioning 1
40	Truck Body Controller 4
41	Radio
42	Trailer Park
43	Passenger Side 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

Fuse box diagram (TrailBlazer EXT)

Assignment of the fuses in the Rear Underseat Box (TrailBlazer EXT, 2004-2006)

№	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	OnStar Overhead 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	Transmission Control Module
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	RightTurn 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
BLANK	Not Used