APRILIA SHIVER 900, Service Station Manual

Page: 171 / 444

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Position of the throttle valve, maintained by the springs, outside the specified range (at each
key ON). The instrument panel indicates this error by lighting up in a fixed manner the MI
warning light.
Troubleshooting:
•
Check the cleanliness of the throttle body and the intake duct. If ok, replace the throttle body.
P1411 Rear throttle valve mechanical (re-closing) springs self-learning
Functional diagnosis:
•
Test failed.
Error cause
•
Throttle valve return time, in the position maintained by the springs, outside of the specified
limits: the causes can be a deterioration of spring performance or excessive throttle valve
friction (at each key ON).
Troubleshooting:
•
Check the cleanliness of the throttle body and the intake duct. If ok, replace the throttle body.
P1408 Rear throttle valve minimum mechanical position self-learning
Functional diagnosis:
•
Test failed.
Error cause:
•
Position of the throttle valve stopper outside of the specified range (at each key ON).
Troubleshooting:
•
Check the cleanliness of the throttle body and the intake duct. If ok, replace the throttle body.
P1409 Rear throttle valve recovery conditions detection (Tair,Twater)
Functional diagnosis:
•
Ice possibly present.
Error cause:
•
in conditions of low ambient temperature and engine temperature, a correct throttle valve
rotation was not detected: possible presence of ice in the duct (at each key ON). The in-
strument panel indicates this error by lighting up in a fixed manner the MI warning light.
Troubleshooting:
•
Check the cleanliness of the throttle body and that there is no ice or condensate in the intake
duct. If ok, replace the throttle body.
P1410 Rear throttle valve power supply voltage during self-learning
Functional diagnosis:
•
Low power supply voltage.
Error cause:
SHIVER 900
Electrical system
ELE SYS - 171