Fuse/Relay
Location
Fuse Amp
Rating
Power Distribution Box Description
14 30A** Trailer running lamps relay, Trailer backup
lamps relay
15 40A** Main light switch, Daytime Running Lights
(DRL)
16 50A** Auxiliary blower motor relay
17 30A** Fuel pump relay
18 60A** I/P fuses 33, 37, 39, 40, 41
19 60A** 4WABS module
20 20A** Electric brake controller
21 50A** Modified vehicle power
22 40A**
Trailer battery charge relay, Modified vehicles
23 60A** Ignition switch, Fuse panel
24 20A* Natural gas tank valves (NGV only)
25 20A* NGV module (NGV only)
26 10A* A/C clutch (4.2L only)
27 15A* DRL module, Horn relay
28 — PCM diode
29 — Not used
A — Marker lamps relay
B — Stop lamp relay
C — Trailer backup lamps relay
D — Trailer running lamps relay
E — Trailer battery charge relay
F — IDM relay (Diesel only), A/C clutch relay
(4.2L only)
G — PCM relay
H — Blower motor relay
J — Horn relay
K — Fuel pump relay
* Mini fuses ** Maxi fuses
Relays
Relays are located in the power distribution box and should be replaced
by qualified technicians.
2003 Econoline (eco)
Owners Guide (post-2002-fmt)
USA English (fus)
Roadside Emergencies
143
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