APRILIA DORSODURO FACTORY ABS 2011 Service Station Manual page 125

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DORSODURO FACTORY ABS
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 42 of the VEHICLE con-
nector. If the circuit is open, shorted to negative: voltage equal to zero has been detected
at PIN 42 of the VEHICLE connector.
Troubleshooting
•
shorted to positive: check the value shown by the parameter of the left Throttle Grip Position
Sensor - track A: 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 grip
sensor if the voltage drops to zero.
•
if the circuit is open, shorted to negative: check the throttle grip sensor connector and the
Marelli control unit connector. If not OK, restore. If OK, check circuit continuity between the
two cable terminals. If not OK, restore; if OK, check the cable ground insulation (from the
throttle grip sensor connector or the control unit connector): if the cable is not ground insu-
lated, restore the wiring. If it is ground insulated, and with the key set to ON, check that there
is power supply for the potentiometer PIN A and that PIN C is connected to ground. If both
are correct, replace the throttle grip sensor; if not, check the continuity of the cable that is
not functioning properly: if there is continuity, replace the control unit; if not, restore the wiring
Left side Throttle Grip Position sensor - track B P0151- short circuit to positive / open circuit, short
circuit to negative
Error cause
•
Voltage that is excessive / equal to zero has been detected at PIN 40 of the VEHICLE
connector.
Troubleshooting
•
short circuit to positive: check the value shown by the parameter of the left Throttle Grip
position Sensor track B: disconnect the left connector and see the value displayed by Nav-
igator: if the voltage does not vary, there is a short circuit in the cable wiring; replace the
throttle grip sensor if the voltage drops to zero.
•
if the circuit is open, shorted to negative: check the throttle grip sensor connector and the
Marelli control unit connector. If not OK, restore. If OK, check circuit continuity between the
two cable terminals. If not OK, restore; if OK, check the cable ground insulation (from the
throttle grip sensor connector or the control unit connector): if the cable is not ground insu-
lated, restore the wiring. If it is ground insulated, and with the switch key set to ON, check
that there is power supply for the potentiometer PIN D and that PIN F is connected to ground.
If both are correct, replace the throttle grip sensor; if not, check the continuity of the cable
that is not functioning properly: if there is continuity, replace the control unit; if not, restore
the wiring.
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Electrical system
ELE SYS - 125