Blue-ox BX88274 User Manual download pdf

BX88274

High Current Fuse ByPass Switch

Installation Instructions

405-0241 Page 1 of 3 2/8/12

ALWAYS match the amperage of the fuse in the Fuse ByPass Switch harness to the fuse removed

from the fuse panel.

NEVER install a fuse with more than a 50 amp rating in the Fuse ByPass Switch harness.

REMOVE any fuse from the Fuse ByPass Switch harness.

BEFORE YOU BEGIN: Consult the owner’s manual for the towed vehicle

to determine which fuse must be removed from the “towed” vehicle’s

under hood fuse box. Remove the large

plastic fuse box cover and remove the high

amperage (e.g. 50 amp) fuse. Conrm that

the colored connectors on the Fuse ByPass

Switch wire (or adapter if supplied) match the pin sizes in the fuse box

location from where you removed the fuse. If your manual requires that

you remove another mini fuse, typically the 15 amp ECM fuse, you will

need an additional mini version of the Fuse ByPass Switch.

Note: A small 5/8” access hole will be drilled into the fuse box cover to complete the installation. It is

recommended that you follow the steps below prior to drilling the access hole.

1. Install the adapter, if supplied. Use a test light or multi-meter set to read 20 volts DC in order to

determine which of the two (2) pins in the fuse box has 12 volts present. Connect the mutli-meter

probe or the clip connector from the test light to a suitable ground connection. Probe the two (2)

terminals with the probe to nd the one that shows 12 volts or lights the test light when the probe

is touched to the fuse box terminals. Install the red connector on the Fuse ByPass Switch onto

the 12 volt terminal identied. It is often the one closest to the passenger compartment. Install the

remaining blue connector onto the other terminal in the fuse box.

2. Using a portable drill with a Phillips head screwdriver bit, install the ring

connector from the small black fuse holder wire using the supplied self drilling

screw. Locate this screw on the inner fender area close

to the fuse panel so that when installed there is sufcient

wire to lay the Fuse ByPass Switch in a convenient

location near the fuse panel. An alternative is to loosen

the large ground stud to the left of the fuse box and fully

insert the terminal under the ring as shown in the photo, then securely

tighten to retain the ring terminal.

3. Reinstall the 2 amp fuse into the small black fuse holder.

4. Install the larger high current (e.g. 50 amp) fuse into the larger rubber fuse

holder in the Fuse ByPass Switch harness. Gently press it into place and

insure it is fully seated. Cover it with the supplied rubber cap.

1 2 3

Installation Instructions 1

Summary of Contents

Page 1 - Installation Instructions

BX88274High Current Fuse ByPass SwitchInstallation Instructions405-0241 Page 1 of 3 2/8/12ALWAYS match the amperage of the fuse in the Fuse ByPass S

Page 2

BX88274High Current Fuse ByPass SwitchInstallation Instructions405-0241 Page 2 of 3 2/8/12Test the Fuse ByPass Switch by checking that when the butt

Page 3

BX88274High Current Fuse ByPass SwitchInstallation Instructions405-0241 Page 3 of 3 2/8/1210. Find a suitable location next to the fuse box to move

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Blue-ox BX88274 User Manual

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