Troubleshooting; Failure Code Verification - APRILIA pegaso 650 i.e. Service Manual

ELECTRIC SYSTEM

6.5.2 TROUBLESHOOTING

N
Position the vehicle on the stand.
N
Turn the ignition switch to position "2".
The diagnostic warning light "û" (1) comes on.
a
CAUTION
Do not carry out any operation on the components of
the vehicle with the ignition switch in position "2".
With the engine stop switch in position "1", it comes
on whenever the ignition switch is brought to posi-
tion "2" and remains on, with low light intensity, thus
testing the correct operation of the injection circuit.
N
Start the engine.
If the diagnostic warning light "û" (1) goes out a few sec-
onds after the engine start, this means that the central
unit has not detected any anomaly.
If the diagnostic warning light "û" remains on after the
engine start or comes on during the normal operation of
the engine, this means that the electronic unit has detect-
ed an anomaly.

6.5.3 FAILURE CODE VERIFICATION

N
Remove the saddle, see p 7.1.7 (REMOVING THE
SADDLE).
a
CAUTION
Do not start the engine.
N
Put the gearshift into neutral.
N
Turn the ignition switch to position "2".
N
Turn the engine stop switch to position "2".
N
Short-circuit the two contacts of the central unit electric
connector (2) (see figure) for twelve seconds, in order
to activate the "workshop mode".
NOTE
The "workshop mode" interrupts the operation of
the injection system, the coil and the fuel pump for safety
reasons.
At this point:
– the diagnostic warning light (1) positioned on the dash-
board will blink for five seconds, confirming in this way
that the "workshop mode" has been successfully acti-
vated.
NOTE
Each failure code consists of 2 digits.
The failure codes correspond to the blinking of the warn-
ing light, according to the following codification:
EXAMPLE: failure code 53 = 5 long blinks + 3 short
blinks.
NOTE
Between two different failure codes the warning
light remains off for 3 seconds.
N
Refer to the following table to verify the correspond-
ence between the failure code and the problem that is
being dealt with.
NOTE
Short-circuit the two contacts of the central unit
electric connector (2) (see figure) for twelve seconds, in
order to exit from the "workshop mode".
The diagnostic warning light (1) positioned on the dash-
board will blink for five seconds, confirming in this way
that the "workshop mode" has been successfully aban-
doned.
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Pegaso 650 I.E.
Release 00/2002-02