APRILIA SL 750 SHIVER Service Station Manual page 116

Electrical system
•
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
•
if shorted to positive: check the value shown by the parameter of the front throttle Potenti-
ometer 1 (voltage): disconnect the left connector and see the value displayed by Axone: 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, short circuit to negative: check the throttle body connector and the
throttle valve connector. If not OK, restore; if everything is OK, check circuit continuity be-
tween the two terminals. If not OK, restore the cable harness; if OK, check the circuit earth
insulation (from throttle sensor connector or control unit connector). If it is earth 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
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 A5 of the throttle control
unit. If the circuit is open, shorted to negative: voltage equal to zero has been detected at
PIN A5 of the throttle control unit.
Troubleshooting
•
if shorted to positive: check the value shown by the parameter of the front throttle Potenti-
ometer 2 (voltage): disconnect the left connector and see the value displayed by Axone: 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, short circuit to negative: check the throttle body connector and the
throttle valve connector. If not OK, restore; if everything is OK, check circuit continuity be-
tween the two terminals. If not OK, restore the cable harness; if OK, check the circuit earth
insulation (from throttle sensor connector or control unit connector). If it is earth 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 1 sensor, rear throttle position P0125
Example value:short circuit to positive/ open circuit, short circuit to negative
Error cause
ELE SYS - 58
SL 750 SHIVER