APRILIA SL 750 SHIVER Service Station Manual page 111

SL 750 SHIVER
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If shorted to positive: excessive voltage has been detected at PIN 34 of the ENGINE con-
nector.
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If shorted to negative: no voltage has been detected.
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If the circuit is open: an interruption has been detected.
Troubleshooting
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if shorted to positive: disconnect the injector connector, set key to ON, activate the compo-
nent with Axone and check the voltage on the filter casing grey/green cable on the filter
casing small connector towards the Marelli control unit: if there is voltage, restore the cable
harness between the filter casing connector and the Marelli control unit. If there is no voltage,
reconnect the connector and check if there is voltage at PIN -: if there is voltage, restore the
filter casing cable harness. If there is not, replace the sensor.
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if shorted to negative: disconnect the injector connector, set the key to key ON and check if
there is a ground connection on the grey/red cable: if there is, restore the cable harness
between the filter casing connector and the Marelli control unit; if there is not, reconnect the
connector and disconnect the injector connector and check if there is a ground connection
on PIN -: if there is voltage, restore the filter casing cable harness. If there is not, replace
the injector.
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the circuit is open: check the component correct electrical characteristic: if it is not correct,
replace the component; if it is correct, check the filter casing small connector, the connector
on the component and the Marelli control unit connector: If not OK, restore. If OK, check
cable continuity between the ENGINE PIN 34 and component PIN - and restore the cable
harness.
Coil
COIL
Function
Spark generation.
Operation / Operating principle
Inductive discharge system.
Level in wiring diagram:coils and injectors.
Location:
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on the vehicle: on the cylinder head
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connector (if available): -
Electrical characteristics:
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Primary circuit resistance: approx. 1
Ohm at 20°C between PIN 1 and 3.
Electrical system
ELE SYS - 53