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DESCRIPTION OF FAULTS
FLASHING NUMBER
Inadequate battery voltage or ECU disconnected
9
Low voltage
10
Faulty oil pump
Air injector fault
11
aprilia
(DOUBLE CHECK THE MALFUNCTION BEFORE REPLACING ANY PART)
FAULT PRIORITY
ENGINE CHECK
Battery voltage too low
Red/brown wire connector 15 wire to the ECU not con-
nected or connected to earth
Voltage regulation wires and/or connectors not wired
up
1
-
Wires and/or connectors of the injector system relay
not connected
Magnet flywheel
Connectors
Damaged wires
1
-
Pompa dell'olio danneggiata
Damaged ECU
Connectors
Damaged wires
Damaged air injector
2
-
Damaged injection plant relay
Damaged ECU
POSSIBLE CAUSE
CHECKS AND REMEDIES
Check the battery charge. Check and restore battery
connections if necessary.
Check the continuity (R=0 Ohm) of the red/brown wire.
Check the wires/connectors (see SR 50 WATER HAND-
BOOK)
Check connectors. Fit the relay between the blue wire
and red/black wire. If the relay closes, check the conti-
nuity (R=0 Ohm) between the red/brown wire and or-
ange wire. If the values are correct: check the general
feed plant (battery, fuse, main switch).
Check the magnet flywheel (see SR 50 WATER HAND-
BOOK)
Check connectors
Check the continuity (R=0 Ohm) of the brown wire be-
tween the pump and ECU. Check the voltage (12V)
between the red/black wire and negative battery pole.
Control the general electrical feed plant (battery, fuse,
main switch)
Check the resistance value of the oil pump (26.3 Ohm
at 25°C) between the positive and negative pole.
See ECU CONTROL
Check connectors
Check the continuity (R=0 Ohm) of the white/red wire
between the air injector and ECU. Check the voltage
(12V) between the red/black wire and the negative pole
of the battery.
Check the resistance inside the air injector between
the negative and positive poles (R= 1.3 Ohm)
Check connectors. Fit the relay between the red and
blue wire. If the relay closes check the continuity (R=0
Ohm) between the red/brown wire and the orange wire.
If values are correct: check the general feed circuit (bat-
tery, fuse, main switch).
See ECU CONTROL
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