MOTO GUZZI Stelvio 1200 4V Service Manual page 63

STELVIO 4V - 1200
•
PINS A-C: throttle closed approx. 2.5
kOhm; throttle open approx. 1.5 kOhm.
•
PINS A-B: approx. 1.1 kOhm
Pin-out:
•
PIN A: ground connection
•
PIN B: supply voltage +5V
•
PIN C: potentiometer signal
THE CONNECTION DIAGRAMS ARE IN THE ELECTRICAL SYSTEM SECTIONS; PAY ATTENTION
TO THESE DIAGRAMS AS THEY SHOW THE CONNECTOR/COMPONENT AS VIEWED FROM
THE CABLE HARNESS SIDE, THAT IS LOOKING AT THE CABLES WHEN GOING OUT OF THE
"MAIN" CABLE HARNESS AND INTO THE CONNECTOR/COMPONENT.
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
NAVIGATOR: FUEL INJECTION SYSTEM
NAVIGATOR: PARAMETERS
Throttle
Example value: 4.9°
NAVIGATOR: STATUSES
Throttle position
Example value:Released/Pressed/Full load
Indicates if the throttle potentiometer is open or closed in the released position.
NAVIGATOR: ERRORS
Throttle actuator position sensor P0120
Example value:open circuit, shorted to positive / shorted to negative.
Error cause
•
If the circuit is open, shorted to positive: excessive voltage has been detected at PIN 3 of
connector A (BROWN).
•
If shorted to negative: voltage equal to zero has been detected.
Troubleshooting
•
Circuit is open, shorted to positive: check the injection control unit connector and the sensor
connector: if they are not OK, restore; if they are OK, check continuity between PIN 3 of
connector A (BROWN) and PIN C of the sensor (red cable): if there is not continuity, restore
the cable harness; if there is continuity, check continuity of the sensor between PIN A and
PIN C: if there is not continuity, replace the potentiometer; if there is continuity, check the
Electrical system
ELE SYS - 63