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09-16-2021, 09:24 PM | #1 |
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Traction Control & ABS light on
My ABS and slip lights recently turned on, theyre off once i start the car but after a few turns or bumps, the ABS and slip lights come on and i have no ABS or traction control. Also, when these lights are on while im on the highway, after a few miles, my check engine comes on and i lose power steering and my speedometer.
I checked all forums and they all say to replace a speed sensor, unfortunately im not sure which speed sensor to replace. They are kinda expensive and id rather not have to buy for all 4 sides. The codes that pop up are: C1234, C1237, P0500, & P1604 P0500 states that its Vehicle Speed Sensor "A" Circuit, anyone know if this tells you which speed sensor it is on a Scion FRS? |
09-17-2021, 10:15 AM | #2 | |
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09-17-2021, 10:23 AM | #3 |
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If you don't have access to a scanner that reads Subaru-specific diagnostics, you can probe the leads on each sensor with a multimeter and see which one doesn't match the other sensors' impedance.
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The Following User Says Thank You to Yoshoobaroo For This Useful Post: | Dzmitry (09-17-2021) |
09-17-2021, 03:30 PM | #4 | |
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I noticed that you also have four tire pressure warning codes. Can you fill us in on those? What are your actual tire pressures at each wheel using a good tire pressure gauge? |
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04-01-2022, 06:51 PM | #5 |
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UPDATE: okay so I took the car to a mechanic and he had to do a few things to keep the light off but here's a list of exactly what he did and what you can try if you have the same problem and can't diagnose it
1. I did not have a bracket for my ABS module, he fabbed one up for me and it kept the light off UNTIL a couple miles, so this helped a little bit but i think its highly UNLIKELY that you are missing an bracket for your ABS module 2. my tires did not have the same tire wall size, i was running 245/45/18 in the rear and 235/35/18 in the front, once this was fixed the light did not come back at all, I'm not sure if this was the direct cause of it but it did make it so that the light never came back on 3. (PROBABLY THE REAL YOU HAVE THE PROBLEM) After a couple months I decided to install a quick release steering wheel, in doing so I had barely moved the clock spring right behind the steering wheel. Upon doing so I guess it's somehow maybe connected to the steering position sensor or something. I took it back to the shop, and since I had not touched anything prior I told him it probably just needs a recalibration, he recalibrated it and it has not appeared since. ALSO he tells me he recalibrates the system after each attempt at fixing the issue, that would be 1 and 2 in the text above, if this is true I am not sure. 3.1. He told me he recalibrated the ABS system, which I'm not sure exactly what he did but he used a tablet which I think probably had techstream in it, if that's the case unfortunately this is not a DIY fix, the mechanic I had was very good and willing to try a bunch of solutions so shout outs to him. There are maybe other solutions to this but my mechanic told me these newer cars have very sensitive electronics and the slightest change to even the tire size, moving the clockspring a little, can affect the a lot of stuff, hopefully this helps anybody who is having trouble diagnosing their issue... will edit later for clarification... |
04-01-2022, 07:24 PM | #6 | |
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04-02-2022, 02:27 AM | #7 |
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Yea the light does not come on anymore... it makes sense that that would cause the issue
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04-02-2022, 12:06 PM | #8 | |
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It was likely just tire size causing it. Bad alignment or a flat tire will also sometimes cause it, that is how sensitive it can be.
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | jrhudson (04-02-2022) |
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