APRILIA DORSODURO FACTORY ABS 2011 Service Station Manual page 148

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
Electrical system
•
If shorted to positive: excessive voltage has been detected at PIN B5 of the throttle control
unit. If the circuit is open, shorted to negative: voltage equal to zero has been detected at
PIN B5 of the throttle control unit.
Troubleshooting
•
shorted to positive: check the value shown by the parameter of the Rear throttle Potenti-
ometer 2 (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.
Front throttle supply voltage during self-acquisition P0164
Example value:low supply voltage
Error cause
•
The throttle power supply voltage is too low to carry out the self-acquisition test correctly (at
each key ON). The instrument panel does not indicate the presence of this error even in the
ATT status.
Troubleshooting
•
The throttle test is not carried out when the key is set to ON because the test could show
unreal errors (because the voltage is too low). Voltage is detected by the Marelli control unit.
Front throttle control circuit P0166
Example value:short circuit to positive / short circuit to negative / open circuit, overvoltage, excessive
internal temperature.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN C1 of the throttle control
unit connector. If shorted to negative: no voltage has been detected. If the circuit is open:
an interruption has been detected.
Troubleshooting
•
shorted to positive: disconnect the throttle body connector, set key to ON and check voltage
at PIN 3: if the voltage read is higher or equal to 5V, there is a short circuit on the cable
harness; replace the throttle body if the voltage is null
ELE SYS - 148
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DORSODURO FACTORY ABS