MOTO GUZZI B043157 Service Station Manual page 157

Moto Guzzi California 1400
•
connector: under right side steering
column.
Electrical specifications:
•
STOP position: the circuit is open
•
RUN position: closed circuit (continui-
ty)
Pin out:
1 ground (pink/black cable)
2 power 5 V (pink/brown cable)
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING,
CAREFULLY READ THE GENERAL TROUBLESHOOTING
CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGIN-
NING OF THE CHECK AND CONTROL SECTION IN THE
ELECTRICAL SYSTEM CHAPTER.
DIAGNOSTICS INSTRUMENT: STATUSES
RUN / STOP switch
•
Run/Stop
NOTES
•
indication on the diagnostics instrument always STOP: disconnect the connector and verify
with the RUN switch whether there is continuity toward the two Pink/Black and Pink/Brown
cables switch: If there is not continuity, replace the sensor; if there is continuity, check the
connector: of not OK restore the cabling, if OK verify the presence of voltage on the Pink/
Brown cable with the key ON: if absent, restore cabling, if present verify insulation from
ground of the Pink/Brown cable: If there is continuity with ground connection, restore the
cable harness; if OK, set the key to OFF and check the VEHICLE connector and the engine-
vehicle cable harness connector: if it is not OK, restore; if it is OK, check the continuity of
the Pink/Brown cable between the switch and the VEHICLE connector PIN 58: if not OK,
restore the cable harness; if OK, replace the Marelli control unit.
•
indication on the diagnostics instrument always RUN: disconnect the connector and, with
the switch set to STOP, check if there is continuity between the two cables of the switch: if
present replace the switch, if absent this means that, with the key ON, the Pink/Brown cable
(between the switch and the control unit connector PIN 58) is short circuited to positive:
restore the cable harness.
Connectors
Electrical system
ELE SYS - 157