correct activation: no error indications
are displayed in case of lack of activa-
tion
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.
DIAGNOSIS INSTRUMENT: ELECTRICAL ERRORS
Cooling fan relay P0480
•
short circuit to positive/ short circuit to negative / open circuit
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 61 of the VEHICLE con-
nector. If shorted to negative: no voltage has been detected. If the circuit is open: 5V voltage
has been detected. Error recognition carries out only when the fan relay is activated.
Troubleshooting
•
If shorted to positive: check the relay electrical specifications are correct by disconnecting
it from the cable harness. If not OK, replace the relay; if OK, restore the cable harness (Brown
cable)
•
If shorted to negative: check the relay electrical specifications are correct by disconnecting
it from the cable harness. If not OK, replace the relay; if OK, restore the cable harness (Brown
cable)
•
If the circuit is open: check the relay electrical characteristics are correct by disconnecting
it from the cable harness; if not OK, replace the relay, if OK, check relay connector and
VEHICLE connector of the Marelli control unit: if not OK, restore; if OK, check continuity of
cable harness (Brown cable)
RUN/STOP switch
Function
It tells the control unit if the rider wishes to enable
engine start-up or to keep the engine running.
Operation / Operating principle
If the rider wants to shut off the engine or to disable
engine start-up, the switch should be open, i.e.
VEHICLE connector PIN 78 of the Marelli control
unit must not be connected to ground.
Level in electrical circuit diagram:
Start-up enabling switches
Electrical system DORSODURO 1200 ABS - ATC
ELE SYS - 182
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