APRILIA MSS Mana GT ABS, Service Station Manual

Page: 111 / 394

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.
AXONE: FUEL INJECTION SYSTEM
PARAMETERS
Fall sensor
Example value: Normal / Tip over
Troubleshooting
•
Indication on Axone always Normal, even when the sensor is inverted: disconnect the con-
nector and, with sensor inverted, check if there is continuity between the two PINS of the
sensor: if there is no continuity, replace the sensor; if there is, check the connector. If not
OK, restore the cable harness; if OK, check continuity to ground of PIN 2: if there is no
continuity, restore the cable harness; if there is, with key set to KEY ON, check if there is
5V voltage at PIN 1. If there is not, check the Marelli control unit connector (PIN 35 of con-
nector B "BLUE")
•
Indication on Axone always Tip over: disconnect the connector and check if there is con-
tinuity between the two PINS when the sensor is in vertical position: if there is continuity,
replace the sensor; if there is not, it means that, with key set to KEY ON, there is no 5V
voltage at PIN 1: restore the cable harness whose pink/yellow cable will be shorted to ground
Air temperature sensor - instrument panel
INSTRUMENT PANEL AIR TEMPERATURE
SENSOR
Function
It tells the ambient air temperature to the instru-
ment panel.
Operation / Operating principle
NTC type sensor (resistance sensor, inversely
variable with temperature).
Level in wiring diagram: Temperature sensors
Location:
•
on the vehicle: on the plastic protection
under the instrument panel
•
connector: under the instrument panel
Electrical characteristics:
•
Resistance at 0°C: 32.5 kOhm +/- 5%
•
Resistance at 25°C: 10.0 kOhm +/- 5%
MSS Mana GT ABS
Electrical system
ELE SYS - 111