2023 Ford E-350 Auxiliary Switches User Manual

Contents hide

2023 Ford E-350 Auxiliary Switches

For maximum vehicle performance, keep the following information in mind when adding accessories or equipment to your vehicle:

When adding accessories, equipment, passengers, and luggage to your vehicle, do not exceed the total weight capacity of the vehicle or of the front or rear axle (GVWR or GAWR as indicated on the Safety Compliance Certification label). Ask an authorized dealer for specific weight information.
The Federal Communications Commission (FCC) and Canadian Radio Telecommunications Commission (CRTC) regulate the use of mobile communications systems equipped with radio transmitters, for example, two-way radios, telephones, and theft alarms. Any such equipment installed in your vehicle should comply with Federal Communications Commission (FCC) and Canadian Radio Telecommunications Commission (CRTC) regulations and should be installed by an authorized dealer.
An authorized dealer needs to install mobile communications systems. Improper installation may harm the operation of your vehicle, particularly if the manufacturer did not design the mobile communication system specifically for automotive use.
If you or an authorized Ford dealer add any non-Ford electrical or electronic accessories or components to your vehicle, you may adversely affect battery performance and durability. In addition, you may also adversely affect the performance of other electrical systems in the vehicle.

The auxiliary switch option package provides four switches, mounted in the center of the instrument panel. These switches operate when the vehicle is running or from battery power, depending on the switchable PDB fuse locations #82 and #83. Ford recommends, however, that the engine remain running to maintain battery charge when using the auxiliary switches for extended periods of time or higher current draws.
When switched on, the auxiliary switches provide 20 amps or 40 amps of electrical battery power for a variety of personal or commercial uses.
The switches include the fuse and relay kit. This kit contains the required fuses and relays that an authorized technician needs to install into the power distribution box, located under the hood. Refer to the instruction sketch included in the kit. Contact an authorized dealer for service.
Each switch includes a power lead (a blunt-cut and sealed wire) located in the underhood cowl shield above the engine block powertrain control module.
The power leads are coded as follows:

Learn more about auxiliary switches by visiting https://www.fleet.ford.com/truckbbas/.

The Upfitter Interface Module (UIM) is an electronic control module that operates equipment (such as lift buckets, cranes, motors, salt spreaders, and snowplows) with external relays.
If you replace the module, it will require additional programming by the up-fitter. Obtain this data directly from the up-fitter company. The up-fitter contact information is in the vehicle door opening.
For more information on the Upfitter Interface Module and the auxiliary switches, contact your up-fitter.