Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
29 10A Diagnostics
30 15A Headlamps (high beam indicator),
DRL
31 10A Right headlamp (low beam)
32 20A Power point #1 (instrument
panel)
33 10A Starter relay
34 — Not used
35 — Not used
36 5A Instrument illumination
37 — Not used
38 10A Brake Shift Interlock
39 10A Trailer tow electric brake, Center
High-Mounted Stop Lamp
(CHMSL)
40 20A Power point (body B-pillar)
41 30A Modified vehicle
42 20A circuit
breakerPower windows
43 — Not used
44 30A circuit
breakerWiper/washer
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
193
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and Specificationschapter.
The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 — Powertrain Control Module (PCM)
diode
2 — Auxiliary battery diode
3 15A* Daytime Running Lamps (DRL)
module, A/C clutch
4 5A* Heated PCV (4.6L and 6.8L
engines)
5 15A* Horn relay
6 20A PCM —fuel injectors
7 60A** Ignition switch, Delayed accessory
delay
8 40A** Trailer tow battery charge relay
9 50A** Modified vehicle power
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
194
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
10 30A** Trailer tow electric brake
controller
11 60A** 4-Wheel Anti-lock Brake System
(4WABS)
40A** AdvanceTracwith RSC
12 60A** I/P fuses 29, 34, 35, 40 and 41
13 20A** Fuel pump relay
14 50A** Auxiliary blower relay
15 30A** Main light switch
16 40A** ABS/IVD
17 50A** Blower motor relay (blower
motor)
18 60A** Engine compartment fuses 3, 5
and 26, 23 (diesel) Instrument
panel fuses 26 and 32, PCM start
relay
19 50A** IDM relay (diesel engine only)
20 60A** Auxiliary battery relay (gasoline
engine only), PDB fuses 8 and 24
21 30A** PCM power relay, PDB fuse 27
22 60A** I/P fuses 4, 5, 10, 11, 16, 17, 22
and 23, Circuit breaker 44
2310A* Alternator field (diesel engine
only)
20A* PCM, VMV, HEGO, MAF, EGR,
(gasoline engine only)
24 20A* Trailer tow running lamps and
back-up lamp relays
25 — Not used
26 20A* Trailer tow turn signals
27 10A* PCM KAPWR, Canister vent
(gasoline engine only)
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
195
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
28 — Not used
A — Fuel pump relay
B — Horn relay
C — Trailer back-up lamps relay
D — Trailer running lamps relay
E — Trailer battery charge relay
F — IDM relay (diesel only), IVD
(gasoline only)
G — PCM relay
H — Blower motor relay
J — Accessory delay relay
K — Start relay
* Mini fuses ** Maxi fuses
Relay modules
Instrument panel relay module
The instrument panel relay module is located behind the radio in the
center of the instrument panel. Have your authorized dealer service this
module, if required.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
196
