Relay Box: Locations

Engine Compartment Fuse Block




Fuses Usage
1 Electrically Controlled Air Suspension
2 Passenger's Side Headlamp High-Beam
3 Passenger's Side Headlamp Low-Beam
4 Trailer Back-Up
5 Driver's Side Headlamp High-Beam
6 Driver's Side Headlamp Low-Beam
7 Washer
8 Automatic 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 Ignition B
18 Airbag System
19 Electric Brake
20 Cooling Fan
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 Bank A
50 Passenger's Side Trailer Turn
51 Driver's Side Trailer Turn
52 Hazard Flashers
53 Transmission
54 Oxygen Sensor B
55 Oxygen Sensor A
56 Injector Bank B
57 Headlamp Driver Module
58 Truck Body Controller 1
59 Electric Adjustable Pedals
61 Ignition A

J-Case Fuses
17 Trailer Turn Signal, Stoplamp
32 Trailer
33 Anti-lock Brake System
34 Ignition A
35 Blower Motor
36 Driver's Side Headlamp
62 Passenger's Side Headlamp
65 Vehicle Stability Enhancement System (StabiliTrak�)

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 Pedals
60 Powertrain
63 Low-Beam Headlamp
64 Ignition 1

Misc. Usage
48 Instrument Panel Battery