MOTO GUZZI NEVADA 750, Руководство по обслуживанию станции

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cable between PIN 13 of the control unit connector and PIN 1 of the component and restore
the cable harness
NAVIGATOR: ACTIVATION
Right injector: operation for 4 ms, 5 times
The auxiliary injection relay (No. 12 in the wiring diagram, placed under saddle, second relay starting
from the front; CHECK, however, the identification of the relay with the colour of the cables) is energised
for 5 seconds and the blue/red cable of the injector 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
NAVIGATOR: ELECTRICAL ERRORS
Right injector - shorted to positive / shorted to negative / open circuit.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 6 of the control unit con-
nector.
•
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 the key to ON and check if there
is voltage on the yellow/red cable: if there is voltage, restore the cable harness; if there is
not, replace the injector.
•
If shorted to negative: disconnect the injector connector, set the key to ON and check if there
is continuity between the yellow/red cable and the ground connection: if there is continuity
with the ground connection, restore the cable harness; if there is not continuity, replace the
injector.
•
The circuit is open: check the component correct electrical characteristic: if it is not the cor-
rect 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 continuity between the
cable of PIN 6 control unit connector and PIN 1 of the component and restore the cable
harness.
NEVADA 750
Electrical system
ELE SYS - 49