Lower Injector Cylinder 2 P0202; Lower Injector Cylinder 3 P0203 - APRILIA RSV4 R Service Station Manual

RSV4 R
•
If shorted to negative: disconnect the injector connector, set the key to ON and check if there
is a ground connection on the orange/red cable: if there connection, restore the cable har-
ness. If there is no connection, replace the injector.
•
If the circuit is open: check the component correct electrical characteristic: if it is not the
correct one, replace the component; if it is correct, check the connector on the component
and the Marelli control unit connector: if not OK, restore. If OK, check cable continuity be-
tween the ENGINE PIN 8 and component PIN - and restore the cable harness

Lower injector cylinder 2 P0202

•
short circuit to positive/ short circuit to negative / open circuit
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 46. If shorted to negative:
no voltage has been detected. If the circuit is open: an interruption has been detected
Troubleshooting
•
If shorted to positive: disconnect the injector connector, set key to ON, activate the compo-
nent with the diagnosis instrument and check the voltage on the white/green cable on the
injector connector: if there is voltage, restore the filter box cable harness. If there is no
voltage, replace the sensor
•
If shorted to negative: disconnect the injector connector, set the key to ON and check if there
is a ground connection on the white/green cable: if there connection, restore the cable har-
ness. If there is no connection, replace the injector.
•
If the circuit is open: check the component correct electrical characteristic: if it is not the
correct one, replace the component; if it is correct, check the connector on the component
and the Marelli control unit connector: if not OK, restore. If OK, check cable continuity be-
tween the ENGINE PIN 46 and component PIN - and restore the cable harness

Lower injector cylinder 3 P0203

•
short circuit to positive/ short circuit to negative / open circuit
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 34. If shorted to negative:
no voltage has been detected. If the circuit is open: an interruption has been detected
Troubleshooting
•
If shorted to positive: disconnect the injector connector, set key to ON, activate the compo-
nent with the diagnosis instrument and check the voltage on the white/purple cable on the
injector connector (if there is voltage): if there is voltage, restore the filter box cable harness.
If there is no voltage, replace the sensor
Electrical system
ELE SYS - 177