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Old 04-06-2021, 08:39 PM   #76747
Tcoat
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Drives: 2020 Hakone
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Quote:
Originally Posted by Ultramaroon View Post
FWIW, I think posting in this thread was a pro move. We're the daily crowd and many of us work on our own stuff. Some of us do so exclusively.

That being said, I am at work now. I did see your thread and planned on digging a bit but it looks like @Tcoat beat me to delivering the bitter reality. Your dealer probably just fired up techstream against it and pulled those specific indicators. A compound failure is rare. If I was to believe the dealer's diagnosis, personally, I would dig further into the servo system looking for an intermittent open. Closed-loop servo systems can be notoriously difficult to troubleshoot but one might get lucky finding an intermittent loose connector.

Your choice is to either have the dealer do the work, or snag a copy of techstream and try swapping/calibrating a known good drive unit. This is one of those "if you have to ask..." situations.

edit: I don't think it's the motor. That's usually a hard failure.
I highly doubt it is the motor as well. As you said they usually work or they don't there is rarely an in between. I knew it was well above my pay grade when I looked up the codes and the page just kept scrolling and scrolling with different sensor, relay and things I don't even know what they are failures!
The last time I "calibrated" a steering rack it involved a torch and a large ballpeen hammer.
I knew the steering was electric assist but damn I had no idea how much data it's control unit was dealing with.
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