APRILIA MSS Mana GT ABS, Service Station Manual

Page: 113 / 394

Function
Radiator fan and coolant - Operation.
Operation / Operating principle
When the control unit detects a temperature above 100 °C, it closes the fan control relay pickup circuit
to ground until the temperature falls to 97 °C.
Level in wiring diagram: electric fan
Location:
•
Relay located under the helmet compartment, right side.
Electrical specifications:
•
relay normally open;
•
drive coil resistance 110 Ohm (+/- 10 %)
STATUSES
Fan relay
Example value: on / off.
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.
AXONE: FUEL INJECTION SYSTEM
ELECTRICAL ERRORS
Fan relay P0481 - shorted to positive / open circuit, shorted to negative.
Error cause
•
If shorted to positive: excessive voltage has been detected at PIN 14 of connector B (BLUE).
If the circuit is open, shorted to negative: voltage equal to zero has been detected
•
If the circuit is open, shorted to negative: voltage equal to zero has been detected.
Troubleshooting
•
If shorted to positive: check whether the relay electrical specifications are correct by dis-
connecting it from the cable harness. If they are not correct, replace the relay; if they are
correct, restore the cable harness (blue/brown cable).
•
If the circuit is open/shorted to negative: check whether the relay electrical specifications
are correct by disconnecting it from the cable harness. If they are not correct, replace the
relay; if they are correct, restore the cable harness (blue/brown cable).
MSS Mana GT ABS
Electrical system
ELE SYS - 113