User Manual - Page 154

For F-350 1999.

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Fuse/Relay
Location
Fuse Amp
Rating
Description
25 5A 4-Wheel Anti-Lock Brake System (4WABS)
Module
26 Not Used
27 10A Ignition Run Power Feed (Customer Access)
28 10A Brake Shift Interlock, DRL Relay Coil, Speed
Control Module, Backup Lamps, Trailer Tow
Backup Lamp Relay Coil, Electronic Shift On
The Fly Hub Lock Solenoid
29 5A Instrument Cluster (Charge and Airbag
Warning Lamps)
30 30A PCM Relay Coil, Ignition Coil (Gasoline only),
Fuel Heater (Diesel only), Wastegate
Solenoid (Diesel only), Injector Driver
Module Relay Coil (Diesel only)
31 Not Used
Relay 1 Interior Lamp Relay
Relay 2 Not Used
Relay 3 Horn
Relay 4 Power Window One Touch Down Relay
Relay 5 Accessory Delay Relay
Power distribution box
The power distribution box, trailer tow and electronic shift on the fly
relay blocks are located in the engine compartment near the brake
master cylinder.
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.
Always replace the cover to the Power Distribution Box before
reconnecting the battery or refilling fluid reservoirs.
Roadside emergencies
154
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