MOTO GUZZI 2Q000297 Service Station Manual page 117

V7 III ABS
•
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, replace
it. If it is OK, replace the speed sensor
Engine rpm sensor
Function
It informs 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 electrical circuit diagram
Engine speed sensor
Position
•
Sensor: engine front left section, under
the left cylinder
•
Connector: under the fuel tank
Electrical specifications
•
Winding resistance: 650 Ω ± 15% Out-
put alternating voltage, value range:
minimum: 0.5 V - maximum 5 V
Pin-out
1. Engine revolution sensor positive signal (X2)
2. Engine revolution sensor negative signal
(X1)
3. Engine speed sensor anti-jamming cable
(blue/green)
Diagnostic tool - Parameters and statuses
•
Engine speed - (rpm)
Electrical system
ELE SYS - 117