checkerj

So, I'm thinking of converting my RX330 power steering to be all electric, based on the RX 400h power steering system. I know the 400h operates the power steering on a 30V - 50V circuit but I need the wiring diagram of the 400h power steering circuit to know what additional components I'll need to do the conversion.

Question: Why am I doing this?
Answer: Save on fuel economy and power steering maintenance.

I'm not interested in any comments about why this would be a bad idea (racers have been doing it for decades).

Any assistance on this would be appreciated.

Thanks!

nwfsnake

Without the hybrid power system generating the higher voltages to charge the batteries, not sure how you would get the 30-50volts necessary for the electric steering.

mandyfig

I salute you checkerj, you have a very good imagination!

Good luck with your quest to increase your fuel economy.

litzdog911

Let us know if you figure out how to do this. It would be a very cool project!

Othic

checkerj

@Othic: Thank you SOO much!

jdmRX

Just wanted to know if there was any update on this. I'd like to attempt the same thing. It looks like it's do able but just wanted to be sure before I dive in.

mandyfig

Back from hibernation...

Just a word of caution, higher DC Voltage require a lot of safety precautions. Have somebody done this? What is the ultimate goal?

jdmRX

It's hard to tell which battery it's connected to; the hybrid or the normal car battery. At the same time, also unsure if the steering ECU can function in fail-safe mode just like the RAV4, Pruis, and Yaris steering ECU's. Attempting a project like this and failing would be quite costly.

I've already converted my steering to an electric steering pump in lieu of the OEM belt driven pump, but the pump is not creating enough pressure needed to catch up when I'm parking or 3-pt turns. Just wanted to see if the RX400h electric rack would be a better option.

My RX350 is supercharged and I had to give up the belt driven pump to make room for new pulley/belts.