Dune 125 - Dune X 125 - Euro 4
Engine rpm sensor
Function
It informs crankshaft position and speed to the Marelli control unit
Operation / Operating principle
Inductive sensor: sinusoidal-type generated voltage; two teeth are missing on the flywheel for the ref-
erence position
Level in electrical circuit diagram
Engine speed sensor
Position
Sensor: LH side of motorcycle, near flywheel
Connector: ...
Electrical specifications
Winding resistance 105-124 Ω at 20°
Pin-out
Engine revolution sensor positive signal (X2)
Engine revolution sensor negative signal (X1)
Engine speed sensor anti-disturbance cable (blue)
Diagnostic tool - Parameters and statuses
Engine speed - (rpm)
Target engine revs - (rpm) (Parameter valid at idle, setting depends especially on
engine temperature: the ECU unit will try to keep the engine running at this revs,
acting on the ignition advance)
Diagnostic tool - Electrical errors
Engine revolution sensor P0336 - inconsistent signal
Cause of error
Possible false contact in the electric circuit detected at PIN 20 and 29 of the engine
control unit connector
Troubleshooting
Check the electric circuit is in good conditions and the flywheel teeth cleaning and
correct positioning of the sensor in its own housing; if it is not, replace it. If it is OK,
replace the sensor
Electrical system
ELE SYS - 87