MOTO GUZZI Stelvio 1200 NTX Service Manual page 73

STELVIO 1200 NTX
•
If shorted to positive: excessive voltage has been detected at PIN 38 of the BROWN con-
nector.
•
If the circuit is open, shorted to negative: voltage equal to zero has been detected at PIN 38
of the BROWN connector
Troubleshooting
•
Shorted to positive: disconnect the coil connector, set the key to ON, activate the coil with
Axone and check voltage at connector PIN 2: if there is voltage, restore the cable harness;
if voltage = 0, replace the coil.
•
If the circuit is open, shorted to negative: check the coil connector and the Marelli control
unit connector. If they are not OK, restore; if everything is OK, check cable continuity be-
tween PIN 2 of the coil connector and PIN 38 of the BROWN connector. If there is not
continuity, restore the cable harness; if there is cable continuity, with the key set to KEY ON,
check the cable ground insulation (from coil connector or control unit connector). If this is
not OK, restore the cable harness.
AXONE: PARAMETERS
Right coil ignition advance.
AXONE: ACTIVATION
Right coil:
The auxiliary injection relay (No. 31 in the wiring diagram, placed on the front right side of the motorcycle,
in the auxiliary fuses/relays box, first relay to the left starting from the front; CHECK, however, the
identification of the relay with the colour of the cables) is energised for 5 seconds and the sky blue/
green 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
AXONE: ELECTRICAL ERRORS
Right coil P0352 - shorted to positive / open circuit, shorted to negative.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 10 of the BROWN con-
nector.
•
If the circuit is open, shorted to negative: voltage equal to zero has been detected at PIN 10
of the BROWN connector
Troubleshooting
•
if shorted to positive: disconnect the coil connector, set the key to ON, activate the coil with
Axone and check voltage at connector PIN 2: if there is voltage, restore the cable harness;
if voltage = 0, replace the coil
•
if the circuit is open, shorted to negative: check the coil connector and the Marelli control
unit connector. If they are not OK, restore; if everything is OK, check cable continuity be-
tween PIN 2 of the coil connector and PIN 10 of the BROWN connector. If there is not
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Electrical system
ELE SYS - 73