User Manual - Page 155

For F-450 1999.

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The high-current fuses and relays are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Description
1 7.5A * Trailer Tow Left Stop/Turn Lamp
2 10A* Air Bag Module
3 7.5A* Trailer Tow Right Stop/Turn Lamp
4 20A* Trailer Tow Backup Lamps, Trailer
Tow Park Lamps
5 20A*
(Gasoline only)
5A*
(Diesel only)
Gasoline only-PCM, Two Speed Fuel
Pump Relay Coil, Fuel Pump Relay
Coil, Mass Air Flow Sensor, Fuel
Injectors
Diesel only-Dual Alternator 9A9 Field
19 29
18 28
30
31
32
33
34
35
3736
17 27
16 26
15 25
14 24
13
11 12
910
78
56
34
12
23
22
21
20
Roadside emergencies
155
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