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Roadside Emergencies
503
502
501
24
401
23
22
20
21
19
The high-current fuses and relays are coded as follows.
Fuse/Relay
Location
1
2
3
4
5
6
7
8
9
10
11
156
209
304
208
303
207
302
Fuse Amp
Rating
15A*
Park Lamps, Roof Lamps
25A*
Cummins Powertrain Control Module
(PCM)
15A*
Foglamps (SuperCrewzer only)
10A*
Generator
15A*
Washer Pump
15A*
Air Intake Heater Relay (CAT), Cummins
PCM
20A*
CAT PCM, Cummins PCM
15A*
Stop Lamps
25A*
C AT Fuel Heater
30A*
Trailer Hook Up lamps (SuperCrewzer
only)
15A*
Shift Modulator (Allison AT trans only)
(Except for f650 SuperCrewzer and
Caterpillar/Cummins)
20A*
Allison MD Trans, Allison 2000/2400 Trans
204
122
206
203
121
205
120
202
119
201
18
16
301
17
15
Power Distribution Box Description
118
114
110
106
117
113
109
105
116
112
108
104
115
111
107
103
14
12
10
8
6
13
11
9
7
5
102
101
4
2
3
1
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