APRILIA RSV4 Factory a-PRC 2009 User Manual

•
If shorted to positive: see that the parameter of the front cylinders air Pressure Sensor on
the diagnosis instrument reads approx. 1200 mbar; disconnect the sensor connector: if the
value does not vary, it means that the cable is shorted between the control unit connector
and the sensor connector: restore the cable harness; Replace the sensor if the value varies.
•
If the circuit is open, shorted to negative: check the Marelli control unit connector and the
sensor connector; if not OK, restore. If everything is OK, with key set to OFF, check if there
is continuity between the PIN 49 of the Marelli control unit and the sensor connector PIN 3:
if there is no continuity, restore the cable harness. If there is continuity, check the cable
ground insulation: if there is continuity to ground, restore the cable harness; if not, with key
set to ON check that the voltage on sensor connector PIN 1 is approx. 5 V: if not OK, set
the key to OFF and check continuity between the ENGINE connector PIN 25 and the sensor
connector PIN 1: if not OK, restore the cable harness; if OK, replace the control unit; if there
is 5V voltage at PIN 1, and with key set to ON, check the continuity to ground of the sensor
connector PIN 3: if not OK, restore the cable harness; if OK, replace the sensor.
DIAGNOSIS INSTRUMENT: LOGIC ERRORS
rear cylinder air pressure sensor P0107
•
signal not valid.
Error cause
•
According to the engine operation data (rpm, throttle, etc.) an average value for the intake
pressure is estimated: if the value read deviates by a given percentage, this error is activa-
ted. The most frequent causes can be: abnormal resistance in the sensor circuit (for
example, rusted terminals) or sensor with poor performance.
Troubleshooting
•
Check the Marelli control unit connector and the sensor connector; if not OK, restore. If
everything is OK, check that resistance between VEHICLE connector PIN 24 and sensor
connector PIN 3 is a few tenths of an Ohm; If it is above that value, restore cable harness.
Replace the sensor if it is correct.
rear cylinder air pressure sensor P0108
•
signal not valid.
Error cause
•
According to the engine operation data (rpm, throttle, etc.) an average value for the intake
pressure is estimated: if the value read deviates by a given percentage, this error is activa-
ted. The most frequent causes can be: abnormal resistance in the sensor circuit (for
example, rusted terminals) or sensor with poor performance.
Troubleshooting
•
Check the filter box large connector, the Marelli control unit connector and the sensor con-
nector; if not OK, restore. If everything is OK, check that resistance between VEHICLE
Electrical system RSV4 Factory a-PRC
ELE SYS - 178

APRILIA RSV4 Factory a-PRC 2009 Specifications

General

Brand	APRILIA
Model	RSV4 Factory a-PRC 2009
Category	Motorcycle
Language	English