APRILIA CAPONORD 1200 Service Station Manual page 94

Electrical system
RPM
RMS DC current (Arms) (average of the 3 stage
currents)
Voltage on battery poles with engine speed always between 3000 - 5000 RPM
•
Start the engine, after about one minute of operating bring the speed to 3000-5000 RPM,
then measure with a tester the voltage at the battery poles that must always be between
13V and 15V. Otherwise, if the correct operation of the alternator has already been checked,
replace the regulator.
CAUTION
PERFORM THE CHECK DESCRIBED ABOVE WITH A BATTERY IN GOOD CONDITION (START
VOLTAGE ABOUT 13V) MAKING SURE THAT THERE ARE NO ELEMENTS IN THE SHORT CIR-
CUIT.
Start-up system check
Function
Communicates to the control unit the will to start-
up the engine.
Operation / Operating principle
Press the start-up button to close the specific cir-
cuit taking the PIN 58 of the control unit to a voltage
equal to zero (ground closing).
Level in electrical circuit diagram:
Start-up signal
Location:
•
on the vehicle: right light switch.
•
connector: between filter box and wa-
ter radiator, at the centre.
Electrical characteristics:
•
key released: the circuit is open
•
key pressed: the circuit is closed
Pin out:
4: voltage + 5V
5: ground connection
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: ELECTRICAL ERRORS
Starter switch P0170
ELE SYS - 94
C
OLD SHORT CIRCUIT CURRENT
2000
26 - 31
CAPONORD 1200
4000 6000
26 - 31 26 - 31
8000
26 - 31