Marine Diesel Engines
O
WNER
’
S
M
ANUAL
General Information
HPE 300
ENG rel. 1/11
www.fnm-marine.com
28
Fuses & Relays
The ECU box is equipped with a LED indicators panel to indicate the fuses integrity status.
The fuses are on the connectors of the circuit in order to make the replacement procedure easier. In
order to replace the fuses, please refer to the following table:
Fuse F7
Fuel heating
Fuse F8
Low pressure fuel pump
Fuse F9
Glow plugs main relay
Fuse F11
Pin 4 ECU
Fuse F10
Pin 5 ECU
Fuse F4
Key on
Fuse F3
EOBD diagnosis
Fuse F5
Main relay
Fuse F2
Fuse F1
Relay
TYCO Code
Characteristics
Description
J4
46520432
12V/30°
Main relay
J5
12V/30°
Fuel pump
J6
12V/30°
Fuel pre-heating
J8
12V/30°
Battery alarm light
J7
12V/70°
Engine starter
Take care of the rubber O-Ring gasket when dismounting the transparent panel over the fuses to
ensure a good protection.
-
The ECU is protected with protection degree IP67
;
The length of the engine cable allows attachment of the ECU box on the wall of the boat; do not attach it to the engine.
The ECU is equipped with a LED indicators panel to see the fuses integrity status.
-At key on all LEDs must be ON.
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