APRILIA SL 750 SHIVER Service Station Manual page 95

SL 750 SHIVER
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, short circuit 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 earth insulation (from the
throttle grip sensor connector or the control unit connector): if the cable is not earth insulated,
restore the wiring. If it is earth 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 earth. 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.
Right side Throttle Grip Position sensor - track C P0152- short circuit to positive / open circuit, short
circuit to negative.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 30 of the ENGINE con-
nector. If the circuit is open, shorted to negative: voltage equal to zero has been detected
at PIN 30 of the ENGINE connector.
Troubleshooting
•
if shorted to positive: check the value shown by the parameter of the right Throttle Grip
position Sensor - track C: disconnect the right side connector and see the value displayed
by the Axone: 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, short circuit 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 earth insulation (from the
throttle grip sensor connector or the control unit connector): if the cable is not earth insulated,
restore the wiring. If it is earth 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 earth. 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
Right side Throttle Grip Position sensor - track D P0153 - short circuit to positive / open circuit, short
circuit to negative.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 44 of the ENGINE con-
nector. If the circuit is open, shorted to negative: voltage equal to zero has been detected
at PIN 44 of the ENGINE connector.
Troubleshooting
Electrical system
ELE SYS - 37