Lexus 89438-33010 Switch, Power Steering Oil Pressure

Disconnect the cable from the negative battery terminal. Raise the front of the vehicle and support it securely on jackstands. For four-cylinder models, note that the Power Steering Pressure Switch is located on the power steering pump and is screwed directly into the pump. Locate the Power Steering Pressure Switch on the power steering pump and disconnect the switch electrical connector. Place a drain pan under the pump, then unscrew the Power Steering Pressure Switch from the pump, anticipating some power steering fluid leakage. Installation is the reverse of removal. Check the power steering fluid level and add fluid as necessary. For V6 models, the Power Steering Pressure Switch is located at the power steering pump, screwed into the top of the banjo bolt connecting the pressure hose to the pump. Disconnect the electrical connector from the Power Steering Pressure Switch. Place a drain pan under the power steering pump, then unscrew the Power Steering Pressure Switch from the banjo bolt, being prepared for power steering fluid leakage. Installation follows the same pattern as removal. Ensure you check and top up the power steering fluid as needed.