MOTO GUZZI 2Q000297 Service Station Manual page 116

Electrical system
•
Connect to the ABS control unit diagnostics
Diagnostics tool - Logic errors
The signal works irregularly 5DA1
Error cause
•
Faulty sensor or signal interference
Troubleshooting
•
Check speed sensor retainer; if not ok restore, if ok, check if the tone wheel is dirty, deformed
or wrongly fixed; if it is not OK, replace the tone wheel; if it is OK, replace the speed sensor
The signal decreases periodically 5DA2
Error cause
•
Possible tone wheel fault due to deformations or dirt; the surface of the wheel bearings may
be deteriorated. In very rare cases, abnormal tone wheel vibrations
Troubleshooting
•
Check if the tone wheel is dirty, deformed or wrongly fixed If the tone wheel is not OK, replace
it. If it is OK, check for possible faults in the wheel bearings; if it is not OK, replace the
bearings
No signal or speed measured too low in relation to the front wheel 5DA3
Error cause
•
Faulty sensor or missing sensor/tone wheel. Or excessive distance between the sensor and
the tone wheel or tone wheel with wrong number of teeth
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; if it is OK, replace the speed sensor
Missing acceleration after pressure reduction 5DA4
Error cause
•
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; if it is OK, replace the speed sensor
Excessive speed detected 5DA5
Error cause
ELE SYS - 116
V7 III ABS