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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Changed PS Fluid Now Yellow Brake and TC Light



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      12-12-2015, 06:10 PM   #1
AS4EX
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Changed PS Fluid Now Yellow Brake and TC Light

Just flushed and filled my ps fluid this evening and now I have these two light on my dash. Prior to flushing everything was fine, now I have a yellow Brake and TC off light. Anyone have this issue before?

Also, the blinker selector won't go back after taking a turn and stays blinking.

Last edited by AS4EX; 12-12-2015 at 06:31 PM..
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      12-13-2015, 10:50 AM   #2
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Have you driven the car at all afterwards? Did you scan for codes?
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      12-13-2015, 11:01 AM   #3
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Sounds like you accidentally reset the steering angle sensor. Just need to drive it to finish the reset.
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      12-13-2015, 11:33 AM   #4
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Yes I drove the car around the rest of the evening getting some xmas shopping done. I did start the car while the front was lifted and tires off the ground and went all the way left to right quite a few times to make sure fluid was fully in the system. After this and driving the yellow TC and Brake light stayed on. I have yet to drive it from sitting over night however.

I read about the angle sensor but does it need X amount of miles driven or something before it finally calibrates? I shouldn't forget to mention the yellow tire psi light, traction off with !, and (O) brake light come on in the cluster right at start up also. I'm guessing these can be effected by the steering sensor?
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      12-13-2015, 11:43 AM   #5
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I have done few power steering flushes on different e9x's. Only one time I ended up with tire, traction and brake lights on the dash. However, I belive that time happened because I did a transmission flush as well and went throught the gears with the car on the lift. Once driven they all cleared with 100 feet.

That's why I think you should scan the ecu.

Sometimes parts fail coincidentally.
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      12-13-2015, 01:26 PM   #6
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I'll have to plan a scan this week my good man!
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