Re: ABS saga continues - Saab 9-5 Bulletin Board - Saabnet.com
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Re: ABS saga continues
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Posted by Justin VanAbrahams [Email] (#32) [Profile/Gallery] (more from Justin VanAbrahams) on Fri, 15 Feb 2019 09:59:23 Share Post by Email
In Reply to: ABS saga continues, bobc [Profile/Gallery] , Thu, 14 Feb 2019 12:12:19
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I think WIS can provide an overview of what causes faults to set, and I was (perhaps errantly) under the impression the car needed to be moving to set such a fault. Seems like this is supported by your lack of a fault when disconnecting the other sensor - no fault was set because the car wasn't moving.

I am suspicious of the rebuilt ABS module. I feel like people who rebuild electronics like this are looking for the one or two common faults and not oddities that may exist elsewhere. When sending a SID in for missing pixels it comes back fine every time, but when sending a SID in for a display that totally disappears at random it took two or three passes. I would not be surprised to find that some tiny surface mount component has failed which causes that fault and got overlooked in a rebuild. If you have access to a spare, I'd certainly try that before taking apart wiring.

FWIW, the ohm reading of a sensor is indicative of a problem, but not the sole descriptor. ABS sensors can certainly fail in unusual ways. My Alfa had a fault on a rear sensor but it ohmed out fine... turned out the entire shell had fallen apart and welded itself to the hub. Whoops. So, similarly, if you have access to a spare it'd be worth a shot. Maybe steal one from another location temporarily just to prove the point?

posted by 66.60.157...

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