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Checking in... car has developed a new and interesting problem. The drivers seat randomly tilts up and slides back. I scan up code B2172 shorted to ground. I removed the seat and inspected the harnesses. Everything appears intact with no exposed wires or worn connections. I retaped the harness and correctly routed all the cables (some had fallen off the little cable guides). This has made no difference. Still shows B2127 error and seat still haunted. Error is NOT present if seat is disconnected so definitely something within the seat itself.
You might want to post this in the tech section. If I had to guess, I would think it has something to do with the memory function. It is likely shifting to a saved preset. Do you have the easy entry option turned on? If so, try disabling it and see if the fixes the problem. Good luck!
You might want to post this in the tech section. If I had to guess, I would think it has something to do with the memory function. It is likely shifting to a saved preset. Do you have the easy entry option turned on? If so, try disabling it and see if the fixes the problem. Good luck!
There is clearly a B2127 short to ground being logged - that being said I'll look at the easy entry regardless.
There is clearly a B2127 short to ground being logged - that being said I'll look at the easy entry regardless.
I just mention that because I had some problems with my seat moving, and turning off the easy entry solved the problem. No promises it will help you. Since it's a ground short, when is the last time you went through and cleaned and put dielectric grease on all your grounds?
One way to confirm a seat memory issue is to run the seat full forward and full back several times. If this procedure clears the problem for a time, then cleaning and re dielectric greasing the memory contacts in the seat motor may cure the problem.
it's isolated to the wiring or components in the seat since the error is not present when the seat harness is disconnected.
When the seat is disconnected there is no power to the seat. If you have a ground fault elsewhere in the harness but there is now no power to that part of the harness you won't show a fault.
C5 computers are very dumb by today's standards.
Have you checked the pins at the seat harness for continuity to ground on pins that should not have any?
Nice call!!! FWIW, I've had my seat out, and apart, to clean the potentiometer in the seat motor so the memory function would work correctly again. I'm here to tell you it wasn't that dirty, but the seat would stop wherever it wanted, usually NOT where the memory was set! I cleaned what little was in there to clean, and I've had no trouble since. Unlike some, I used NO DIELECTRIC GREASE. Not hijacking, just offering a good service idea to do while OP is "in there."
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Haunted Driver's Seat Assistance
FWIW, I've had my seat out, and apart, to clean the potentiometer in the seat motor so the memory function would work correctly again. I'm here to tell you it wasn't that dirty, but the seat would stop wherever it wanted, usually NOT where the memory was set! I cleaned what little was in there to clean, and I've had no trouble since. Unlike some, I used NO DIELECTRIC GREASE. Not hijacking, just offering a good service idea to do while OP is "in there."