APRILIA DORSODURO FACTORY ABS 2011 Service Station Manual page 146

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
Electrical system
Front / rear cylinder throttle correction
Example value: 0.0°
For example, if there is a hole in the intake manifold, the pressure read is different from the pressure
estimated by the control unit and the system tries to reach an "estimated" situation by opening the
throttle a little bit more; therefore, this parameter takes a value different from zero: an acceptable value
should be between -0.7º and +0.7º.
Front cylinder Limp home position / Rear cylinder Limp home position
Example value: 800 mV / 780 mV
Voltage stored in the control unit corresponding to the throttle Limp home position.
Front throttle lower position / Rear throttle lower position
Example value: 502 mV / 492 mV
Voltage stored in the control unit corresponding to the throttle mechanical minimum position.
NAVIGATOR: STATUSES
Throttle Self-learning
Example value:carried out/not carried out
Indicates whether or not the self-acquisition process has been carried out through the diagnosis in-
strument.
NAVIGATOR: ACTIVATION
-
NAVIGATOR: ELECTRICAL ERRORS
Potentiometer 1 sensor, front throttle position P0120
Example value:short circuit to positive / open circuit, short circuit to negative
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN A6 of the throttle control
unit. If the circuit is open, shorted to negative: voltage equal to zero has been detected at
PIN A6 of the throttle control unit.
Troubleshooting
•
shorted to positive: check the value shown by the parameter of the front throttle Potentiom-
eter 1 (voltage): disconnect the left connector and see the value displayed by Navigator: if
the voltage does not vary, there is a short circuit in the cable wiring; replace the throttle body
if the voltage drops to zero.
•
if the circuit is open, shorted to negative: check the throttle body connector and the throttle
valve connector. If not OK, restore; if everything is OK, check circuit continuity between the
two terminals. If not OK, restore the cable harness; if OK, check the circuit ground insulation
(from throttle sensor connector or control unit connector). If it is ground insulated, check that
there is power (+5 V) at the throttle body connector PIN 2, and that PIN 6 is connected to
ground. If both are correct, replace the throttle body.
Potentiometer 2 sensor, front throttle position P0122
ELE SYS - 146
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DORSODURO FACTORY ABS