EPDM & Engine Diagnostics
Models
All ProStar models with standard PV1100 Touch Screen
Purpose
The EPDM is a solid state engine fuse block designed for all
MasterCraft boats to make engine diagnostic checks easier and
more convenient for quick, on the water fixes.
Location
To access the EPDM screen, press the Settings button, which
will call up the Settings menu. Tap Diagnostics, then tap EPDM
Diagnostics.
Operation
The EPDM screen displays critical engine and electrical system
operating information. Amperage draw and the status of internal
digital switches are displayed on the EPDM screen for each engine
function. Digital switch status is designated by either a green, red or
gray indicator.
• A green indicator denotes that the digital switch is
functioning properly.
• A red indicator denotes that there is a problem with the digital
switch and it has tripped.
• A gray indicator denotes that the digital switch is currently
unused or not receiving power.
To reset a tripped digital switch, press RESET next to the system
with a fault. To reset the entire EPDM, press RESET ALL on the
bottom right portion of the screen.
If a digital switch continues to trip multiple times in one outing, it is
a sign of a larger electrical issue and the boat should be taken to an
authorized MasterCraft dealer for diagnosis and repair.
The EPDM and digital switches are designed to protect the engine
and electrical system from damage. If a switch has tripped and
continues to trip even after resetting the EPDM, it may be a
symptom of a larger electrical issue, and the boat should be taken
to an authorized MasterCraft dealer for diagnosis and servicing.
2021MCOwnerManualFINAL.indd 179 8/26/20 1:52 PM
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