Water Temperature; Fuel Level; Checking The Dashboard; Checking The Fuel Level Sensor - APRILIA Atlantic 500 Workshop Manual

Electrical system

WATER TEMPERATURE

CHECKING THE DASHBOARD

• Disconnect the connector of the water thermistor and
connect (from the connector side) an electrical resistor
between the orange/red and black/white cables.
• Turn the key to ON and check the signal on the dash-
board.
Connector values:
<60 Ω
resistance
80 Ω
resistance
>1090 Ω
resistance
CHECKING THE WATER THERMISTOR
See (CHECKING THE CONDITION OF THE COOLANT
THERMISTOR) on page 6-14.

FUEL LEVEL

CHECKING THE DASHBOARD
• Disconnect the connector of the pump assembly
and connect (from the connector side) an electrical
resistor between the yellow-green and orange-black
cables.
• Turn the key to ON and check the signal on the
dashboard.
Connector values:
resistance 250 Ω indication 1/2 scale ± 5 °
resistance 3 Ω
indication full
resistance 820 Ω indication empty and indicator on

CHECKING THE FUEL LEVEL SENSOR

• Disconnect the connector of the pump/sensor
assembly.
• Connect an ohmmeter to terminals 2 and 3 and
check the indication at different fuel levels.
Correct value with full tank: less than16 Ω
Correct value with 8 liters of fuel: 300-400 Ω
Correct value with Ø liters: greater than 800 Ω
6-22
indication bottom of scale
start of red zone ± 5 °
indication
indication start of scale
Release 00 2002-09
Atlantic 500
SEEN FROM "A"
R
chap. 6