Fan Motor Testing; Radiator Fan Control Sensor Testing - Acura 3.5 RL Manual

Fan Motor Testing

1. Disconnect the 2P connector.
TERMINAL SIDE OF
MALE TERMINALS
2. Test the motor by connecting battery power to the
No. 2 terminal and ground to the No. 1 terminal.
3. If the motor fails to run or does not run smoothly,
replace it.
RADIATOR FAN MOTOR
Radiator Fan Control Sensor
Testing
Removing the radiator fan control sensor
while the engine is hot can cause the coolant to spray
out, seriously scalding you. Always let the engine and
radiator cool down before removing the radiator fan
control sensor.
NOTE: Bleed air from the cooling system after installing
the radiator fan control sensor (see page 10-5).
1. Remove the radiator fan control sensor from the
radiator (see page 10-2).
2. Suspend the radiator fan control sensor in a con-
tainer of water as shown.
THERMOMETER
3. Heat the water, and check the temperature with a
thermometer.
CAUTION: Do not let the thermometer touch the
bottom of the hot container.
4. Measure the resistance between the A and B termi-
nals according to the table.
Temperature 183°F (84°C)
Resistance (K ) 1.047-1.254
5. If you don't get the above readings, replace the
radiator fan control sensor.
NOTE: Clean the sensor after testing.
RADIATOR FAN
CONTROL SENSOR
WATER
194°F (90°C)
0.872-1.024