APRILIA SHIVER 900 Service Station Manual page 133

SHIVER 900
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 PIN13 and PIN14 of the ABS control unit.
Electrical circuit diagram - Level in electrical
circuit diagram:
ABS system
Position on vehicle:
On right-hand stanchion of fork, near the brake
calliper mounting bracket.
Position of connector (if applicable):
On the filter housing, right side.
Pin-out:
•
PIN1 - Power feed negative/Signal
negative (white)
•
PIN2 - Power feed positive/Signal pos-
itive (white/brown)
DIAGNOSTIC TOOL
Parameters: Speed (km/h) - Vehicle speed.
ELECTRICAL ERRORS
Speed sensor
5D90 electric malfunction: Electrical fault in sensor or wiring harness.
Troubleshooting: Check the sensor connector and the ABS control unit connector. If they are not OK,
restore the connectors. If they are OK, check continuity of the white/brown cable between PIN 2 of the
sensor on the wiring harness side and PIN 14 of the ABS control unit connector. If there is no continuity,
restore them. If there is, PIN 2 of the sensor on the wiring harness side, with the sensor disconnected
and key set to ON, must have 12V voltage approximately: if there is no voltage, check PIN 2 for continuity
with the vehicle ground connection: if it is grounded, restore the wiring harness. If OK, replace the control
unit. If PIN 2 has approx. 12 V, check the continuity of the white cable between PIN 1 of the sensor on
the wiring harness side and PIN 13 of the ABS control unit connector. If there is no continuity, restore
the wiring harness. If there is, replace the logic errors sensor.
P0501 Front wheel speed sensor/signal
Electrical system
ELE SYS - 133