Low/High Speed Operation
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Engine Coolant Temperature (ECT) switch may also be called water temperature switch.
- Low Speed Operation - Only when the A/C system is activated or the Engine Coolant Temperature (ECT) switch No. 2 is turned on, the A/C condenser fan motor and the radiator fan motor rotates at low speed.
- High Speed Operation - When the A/C pressure switch is turned on and/or the ECT switch No. 1 is turned on, the A/C condenser fan motor and the radiator fan motor rotate at high speed.