lexidudee

I just got off the phone with the Lexus part guy, and the 90925-05086 part number is not the solenoid from the power steering. It is labeled as bimetal vacuum switch and part of the EGR system. They say the the part that controls the speed of the fan off the power steering is in the motor assembly of the ps pump, a 16920 number, which cost $300 plus. I am really confused what I need now after jumping OP2 and E1 and not getting any response. Two conflicting responses. Someone please clarify, thanks.

Solenoid sound bad because of the reading between points 2 and 3, but with OP1 and E1 jumpered, should this bypass the solenoid and get an immediate fan response?

I had bridged OP1 and E1 in the diagnostic port and don't get an increase in the fan, what is the problem? I have checked the resistance between ports 2 and 3, getting a reading between 2 to 3 ohms. Like all other overheating problems, I get coolant loss at the overflow reservoir when the car is not at high speed. Cooling fan is operating at one speed, SLOW... Any and all help is requested, thanks.......