Engine Rpm Sensor - APRILIA MSS Mana GT ABS Service Station Manual

MSS Mana GT ABS
Troubleshooting: Check that the speed sensor and the tone wheel are installed. If they are not, install
them. If they are, check the speed sensor retainer. If it is not OK, restore it. If it is, check if the tone
wheel has the correct number of teeth or if it is dirty, deformed or wrongly fixed. If it is not OK, replace
the tone wheel and if it is OK, replace the speed sensor.
5DA4 missing acceleration after pressure reduction: Faulty sensor or missing sensor/tone wheel
or excessive distance between the sensor and the tone wheel.
Troubleshooting: Check that the speed sensor and the tone wheel are installed. If they are not, install
them. If they are, check the speed sensor retainer. If it is not OK, restore it. If it is, check if the tone
wheel has the correct number of teeth or if it is dirty, deformed or wrongly fixed. If it is not OK, replace
the tone wheel and if it is OK, replace the speed sensor.
5DA5 excessive measured speed: Faulty sensor or tone wheel, or tone wheel with wrong number of
teeth or wrong tyre size.
Troubleshooting:Check that the speed sensor and the tone wheel are installed. If they are not, install
them. If they are, check the speed sensor retainer. If it is not OK, restore it. If it is, check if the tone
wheel has the correct number of teeth or if it is dirty, deformed or wrongly fixed. If it is not OK, replace
the tone wheel and if it is OK, check that the tyre size is the correct one. If it is not OK, replace it. If it is
OK, check that the tyre pressure is the correct one. If it is not OK, restore it; if it is OK, replace the speed
sensor.

Engine rpm sensor

ENGINE REVOLUTION SENSOR
Function
It tells the crankshaft position and speed to the
Marelli control unit.
Operation / Operating principle
Inductive sensor: sinusoidal-type generated volt-
age; two teeth are missing on the flywheel for the
reference position.
Level in wiring diagram:Revolution sensor
Location:
•
on the vehicle: rear cylinder, internal
side
•
connector: right side, under helmet
compartment, along upper frame.
Electrical specifications:
•
Resistance at ambient temperature:
0.7-1.1 kOhm
Electrical system
ELE SYS - 93