Description

The MS3Pro ECU’s feature user-replaceable fuses that protect against voltage spikes and other abuse. To replace these fuses, use a needle nose pliers to pull the fuse out of its holder, and then push in the replacement fuse by hand.

These 500mA fuses are used in the first-generation MS3Pro in the F1 and F2 locations.

The MS3Pro EVO uses this fuse in the F4 location.

Fuses sold individually.

Products FAQ

Where are the fuses located on the MS3-Pro?

• They are on the top side of the board, near the white connector.

How far do I have to disassemble the MS3-Pro to replace the fuses?

• You will need to disassemble the case and remove the PCB.

What tools are needed to replace the fuse(s)?

• Only a #2 phillips bit screwdriver with a good tip.

Why did the fuse blow, anyway?

• The most likely causes are short circuits on the VREF or stepper IAC control wires.