The fuses and relays are coded as follows:
Fuse/Relay
Location
Fuse Amp
Rating
Fuse Description
1
—
Not used
2
30A*
Starter
3
20A*
Park lamps
4
50A*
Injector Driver Module (IDM)/Powertrain
Control Module (PCM)
5
30A*
Headlamps
6
40A*
Blower motor
7
25A*
Wipers
8
30A*
Electric brakes
9
20A*
Door locks
10
20A*
Stoplamps
11
20A*
Fuel pump
12
20A*
RUN/ACC feed
13
20A*
RUN/START feed
14
15A**
Horn
15
10A**
Cluster
16
15A**
Back-up lamps
17
15A**
Fog lamps
18
15A**
Transmission
19
20A*
Fuel heater
20
60A*
Anti-lock Brake System (ABS) module
21
20A*
Trailer lighting circuit
22
-
Not used
23
40A*
Trailer battery charge
24
20A**
Cigar lighter
25
20A**
Hazard flasher
26
15A**
Remote Keyless Entry (RKE)
27
10A**
Radio
28
10A**
Dome lamp
29
60A*
ABS pump
2009 Low Cab Forward Truck
(lcf)
Supplement
USA
(fus)
Roadside Emergencies
99