Speed Sensor - MOTO GUZZI V7 Stone Servise Manual

Electrical system

Speed sensor

Function
To indicate the vehicle speed by reading the rear
wheel turning speed.
Operation / Operating principle
Hall effect sensor: a square-wave pulse is gener-
ated with voltage between 12V and approximately
0.6 V.
Level in electrical circuit diagram:
Speed sensor
Location:
Sensor: on the swingarm, left side,
•
next to the rear brake calliper.
Connector: under right fairing, next to
•
the Marelli control unit.
Pin-out:
PIN:
PINS 1-3 Voltage: approx. 12 V
•
PINS 2-3 Voltage: between 0.6V-12V
•
(turning the rear wheel)
1. Power supply voltage (Orange/White - sen-
sor side)
2. Output signal (Blue/Orange - sensor side)
3. Ground (Blue - sensor side)
ELECTRICAL ERRORS
Error cause
Faulty sensor or cabling, interference on the signal
Troubleshooting
Disconnect the sensor connector.
•
Verify, with the key ON, the voltage between sensor PIN 1-3.
•
If no voltage is detected, check the continuity of the cabling between sensor PIN 1 and
•
instrument panel connector PIN 13.
Carry out the check procedure on instrument panel connector PIN 13.
•
If the cabling is intact, check for continuity with the sensor PIN 3 ground.
•
Check continuity of the cabling between sensor PIN 2 and instrument panel connector PIN
•
17.
ELE SYS - 84
V7 Stone - V7 Special - V7 Racer