Malaguti Dune X 125, Service Station Manual

Page: 94 / 272

Dune 125 - Dune X 125 - Euro 4
Electrical system
ELE SYS - 94
ELECTRICAL ERRORS
Fuel pump relay P0230 - shorted to positive /
shorted to negative / open circuit.
Error cause
Shorted to positive: excessive voltage at PIN 22 of
the control unit connector.
Shorted to negative: null voltage at PIN 2 of the
injection relay.
The circuit is open: interruption of the circuit.
Troubleshooting
Shorted to positive:

Disconnect the injection relay (No. 35
on the electrical circuit diagram), turn
the key to the ON position and activate
the relay through the diagnostics in-
strument.

Verify the presence of voltage between
relay connector PIN 1 and 2 toward the
cabling.

If no voltage is read, disconnect the
control unit and verify insulation from
battery positive of the relay PIN 1 (or
control unit PIN 22). Restore the ca-
bling if necessary.
Shorted to negative:

Disconnect the injection relay (No. 35
on the electrical circuit diagram) and
the control unit.

Verify ground insulation of the relay
connector PIN 1 and 2 toward the ca-
bling: if there is no insulation, restore
the cabling.
The circuit is open:

Disconnect the injection relay (No. 35
on the electrical circuit diagram) and
the control unit.

Verify continuity of the cabling between
the relay and control unit: Relay PIN 1