APRILIA Tuono V4 1100 Factory Service Station Manual page 176

Electrical system
a few tenths of an Ohm: if not OK, repair the wiring harness; if OK, check that the electric
generator is operating correctly: if not OK, repair. If OK, check that the voltage regulator is
working correctly
P1560 Low battery voltage error - GCC error
Functional diagnostic:
•
low voltage
Error cause
•
The error is enabled if, after 5 seconds from the key to ON, the battery voltage is judged low
by the ECU.
•
Low voltage detected to PIN 52 of the Marelli ECU.
The presence of this error is signalled by the fixed lighting of the general warning light.
Troubleshooting
•
Try charging / replacing the battery: if NOT OK, carry out the check procedure for the alter-
nator connector and the control unit connector (paying particular attention to any oxidation):
if not OK, restore. If OK, check that cable resistance between the alternator cable and the
control unit is a few tenths of Ohm: if not OK, repair the wiring harness; if OK, check that the
electric generator is operating correctly: Restore if not OK.
NOTE
THE PRESENCE OF THIS ERROR DETERMINE THE DEACTIVATION OF THE TRACTION CON-
TROL AND THE CRUISE CONTROL.
Speed sensor
FRONT VEHICLE ABS SENSOR
Function:
Generates a signal used by the ABS control unit
to determine the speed value of the wheel.
Operation / Operating principle:
Magneto-resistive sensor: generates a square
wave signal with an amplitude of approximately 1V
between PIN3 and PIN12 of the ABS control unit.
Electrical circuit diagram - Level in electrical
circuit diagram:
Traction control - Speed sensor
Position on vehicle:
On left-hand stanchion of fork, near the brake cal-
liper mounting bracket
Position of connector (if applicable):
ELE SYS - 176
Tuono V4 1100 Factory