onds and the injector cable connected to control unit is closed to ground for 4 ms per second.
Disconnect the 4-way connector of the fuel pump to be able to hear the relay and injector
activation. The continuity of the wiring is necessary for correct activation: no error indications
are displayed in case of lack of activation
Lower injector cylinder 2
•
The injection relay (No. 33 in the wiring diagram, placed under saddle, right side; CHECK,
however, the identification of the relay with the colour of the cables) is energised for 5 sec-
onds and the injector cable connected to control unit is closed to ground for 4 ms per second.
Disconnect the 4-way connector of the fuel pump to be able to hear the relay and injector
activation. The continuity of the wiring is necessary for correct activation: no error indications
are displayed in case of lack of activation
Lower injector cylinder 3
•
The injection relay (No. 33 in the wiring diagram, placed under saddle, right side; CHECK,
however, the identification of the relay with the colour of the cables) is energised for 5 sec-
onds and the injector cable connected to control unit is closed to ground for 4 ms per second.
Disconnect the 4-way connector of the fuel pump to be able to hear the relay and injector
activation. The continuity of the wiring is necessary for correct activation: no error indications
are displayed in case of lack of activation
Lower injector cylinder 4
•
The injection relay (No. 33 in the wiring diagram, placed under saddle, right side; CHECK,
however, the identification of the relay with the colour of the cables) is energised for 5 sec-
onds and the injector cable connected to control unit is closed to ground for 4 ms per second.
Disconnect the 4-way connector of the fuel pump to be able to hear the relay and injector
activation. The continuity of the wiring is necessary for correct activation: no error indications
are displayed in case of lack of activation
DIAGNOSIS INSTRUMENT: ELECTRICAL ERRORS
Lower injector cylinder 1 P0201
•
short circuit to positive/ short circuit to negative / open circuit
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 8. 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 orange/red 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 RSV4 Factory a-PRC
ELE SYS - 190
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