APRILIA SL 750 SHIVER, Service Station Manual, Page: 131 / 303

If there is 5V voltage, connect a 10 kOhm resistance to sensor connector PIN 1 and to the
vehicle ground connection: if, with key set to ON, the voltage measured upstream the re-
sistance decreases, replace the instrument panel. If voltage continues to be approximately
5V, restore the pink cable (there is a short circuit at + 5V)
Notes
If a short circuit to ground is detected at instrument panel connector PIN 10, the display will shown a
full scale indication ????? of air temperature.
Check the earth insulation of the sensor connector pink cable: if there is a connection, restore the cable
harness; if it is earth insulated, check that sensor resistance is correct: if not OK, replace the sensor; if
it is OK, replace the instrument panel
Electric fan circuit
ELECTRIC FAN CIRCUIT
Function
Radiator fan and coolant - Operation.
Operation / Operating principle
When the control unit detects a temperature of approx. 102 °C, it closes the fan control relay pickup
circuit to ground.
Level in wiring diagram: electric fan
Location:
•
the relay is located under the fuel tank, left side, first front relay (CHECK, however, the
identification of the relay with the colour of the cables).
Electrical characteristics:
•
relay normally open;
•
drive coil resistance 110 Ohm (+/- 10 %)
AXONE: STATUSES
Fan relay
Example value: on/off
AXONE: ACTIVATIONS
Fan:
The fan relay (No. 44 in the wiring diagram, placed under fuel tank, left side, first front relay; CHECK,
however, the identification of the relay with the colour of the cables) is energised for 10 seconds. The
continuity of the wiring is necessary for correct activation: no error indications are displayed in case of
lack of activation.
AXONE: ELECTRICAL ERRORS
Cooling fan relay P0480 - short circuit to positive / short circuit to negative / open circuit.
Error cause
SL 750 SHIVER
Electrical system
ELE SYS - 73