MOTO GUZZI 2Q000297 Service Station Manual page 154

Electrical system
•
Electric malfunction. Open circuit, short circuit to negative, short circuit to positive of one or
both wires of CAN line
Troubleshooting
•
Replace the wiring harness
CAN line 5E16 - vehicle code message absent
Error cause
•
Missing reception of CAN line to engine control unit
Troubleshooting
•
Check the control unit software version; if not ok restore, if ok remove the battery and check
continuity of the CAN line; if not ok restore, if ok reconnect the battery and check that there
is no continuity between CAN line to positive and/or negative; if not ok restore, if ok check
and if necessary replace the ABS control unit
Diagnostics tool - Logic errors
Rear wheel radius acquisition P1800 - signal not valid
Error cause
•
CAN error during acquisition
Troubleshooting
•
In case of CAN error during acquisition, system warns that the procedure can not be com-
pleted due to a communication problem on the CAN line. In case of invalid value, it means
that on key-ON an error of transcription occurred - from the non-volatile memory (EEPROM)
to the volatile one (RAM) - of the value concerning the rear wheel radius. In this case the
default value is used.
CAN line 5E1F - incorrect vehicle code
Error cause
•
The ABS control unit was installed in a wrong vehicle
Troubleshooting
•
Replace the control unit
ELE SYS - 154
V7 III ABS