APRILIA RSV4 RR 2017 Service Station Manual page 150

Electrical system
•
Connect to the ABS control unit diagnosis.
REAR VEHICLE SPEED 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 PIN14 and PIN13.
Electrical circuit diagram - Level in electrical
circuit diagram:
Traction control - Speed sensor.
Position on vehicle:
Right-hand side of swingarm, on brake calliper
mounting bracket.
Position of connector (if applicable):
Under the right side fairing.
Pin-out:
•
PIN1 - Power feed negative/Signal
negative (yellow)
•
PIN2 - Power feed positive/Signal pos-
itive (yellow/brown)
DIAGNOSTIC TOOL
Parameters:
Speed (km/h) - Rear wheel speed
DIAGNOSTIC TOOL: ELECTRICAL ERRORS
C1024 Comparison between the front and rear wheel
Electrical diagnosis:
Excessive difference.
Error cause
•
Incorrect wheel or tone wheel dimensions.
Troubleshooting
- Check the type and dimensions of the installed tyres.
- Check the type and dimensions of the installed tone wheels.
C1031 Rear wheel speed sensor
Electrical diagnosis:
Open circuit, short circuit to negative or short circuit to positive.
ELE SYS - 150
RSV4 RR-RF