Sorting out the AHC on my project lx470

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Joined
Apr 28, 2026
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Location
Anacortes Washington
Hi. Long time lurker, first time poster here. I finally have some time to work on my 2003 lx470 that I bought from the original owner last year. It has 155k miles, runs and drives, but was parked when the ahc failed and sat for a few months. I towed it home and have been investigating the ahc in my spare time. Here is what I know -
the pump electric motor works when I close the relay.
I figured out techstream and found that it has codes 1762 for abnormal pressure, and there is code C1231 for steering angle sensor ( steering angle reads 0.0 no matter what I do with the wheel)

Would c1231 disable the AHC ?
Or do I have multiple problems to chase down ?
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