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Electrical system
Coil
Function
It controls the ignition spark plug in order to gen-
erate the fuel ignition spark.
Operation / Operating principle
Inductive discharge system.
Level in electrical circuit diagram:Coils and in-
jectors
Location:
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Electrical characteristics:
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Pin-out:
1. Power supply + Vbatt
2. Circuit ground
NAVIGATOR: PARAMETERS
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NAVIGATOR: ACTIVATION
Left coil:
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 orange/white cable of the coil is closed to ground for 2 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
Left coil - shorted to positive / open circuit, shorted to negative
Error cause
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ELE SYS - 50
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centred under the fuel tank.
connector: on the coils.
Primary winding resistance: 550 kΩ ±
10%
Secondary winding resistance: 3 kΩ ±
10%
Tube resistance 5 kΏ
Left coil ignition advance.
Right coil ignition advance.
If shorted to positive: excessive voltage has been detected at PIN 20 of the control unit
connector.
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NEVADA 750
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