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12-15-2020, 08:43 AM | #1 |
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ABS/Traction Control issue
Started my car today and saw ABS + traction control lights on the dash (fairly sure it was from hitting a curb a couple nights before). Wheel alignment is off too, and no cruise control. Revs fine
Did an OBD2 Scan and these are the codes it spat out: https://ibb.co/sqBHRrT Any advice about what the issue could be and what to do about it would be much appreciated cheers |
12-15-2020, 04:27 PM | #2 |
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fix the alignment and check you didn't bend anything, the cel will be gone if you fix it
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12-15-2020, 05:20 PM | #4 |
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First, if you have a code, cruise control is disabled until the code is cleared, whether that's manually with a scantool or by the ECU after it determines the condition to not exist anymore. Now onto the codes:
C1231 Steering Wheel Angle Sensor - Faulty Operation This is why your steering alignment is off. The sensor is either out of calibration or needs to be replaced. The rest of them support something a little worse than that though: C146C and B2321 are electrical issues on a similar side of the car. Some digging shows the C146C to be an issue with the ABS motor relay system. The B code is more electrical stuff but I'm unsure if that circuit would be the same as the more vital control circuits ABS needs. Everything there points towards electrical issues, maybe a pinched or shorted wire. Have you been working on or cleaning the car recently, especially around the wiring harnesses on your driver's side? Could be pinched wires, a short, or just some wires that got tugged wrong and aren't making a good connection. I don't think we have any emergency systems to roll windows down after a crash, but they are tied in for door open/closed events so they're not going to be on a lowest of low priority "accessories" circuit like the door lamps. I think your best starting point is to start checking fuses, one probably blew. |
12-24-2020, 11:40 AM | #5 | |
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The pump relay open circuit code is fairly straight forwards: Pump Relay Open Circuit. No power getting to the abs pump motor, check fure/relay first, but after you've fixed the suspension geometry issue so the ESP can stop freaking out. A more pressing concern is, if OP knows he punted the car into a curb, why is he asking us about his ABS and not having the damage fixed first? I mean what was the plan here? Bash it, if no lights come on, keep sending it lol. If lights come on, worry about the lights and not the fact that it was bashed into a curb? Fix obvious damage first, handle issues that aren't resolved after that. |
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12-24-2020, 02:11 PM | #6 | |
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Root cause analysis should be slow and steady. It doesn't matter if he punted it into a curb, we need to know what part failed after that unexpected event, and what other parts failed due to that, and so on. All we have is a batch of ECU codes and some pictures of the steering wheel, nothing on the suspension or steering mechanicals, so we have to work backwards. I specifically don't want to give the driver a hard time, otherwise they won't feel welcome to ask these questions when dealing with severe damage like this. Diagnosis is not built on conjecture, and your entire post is just yelling that they ran into a curb. Yes, they did, and then they asked us to help after two shops gave him the runaround when he tried to "Fix obvious damage first" and now he's trying to "handle issues that aren't resolved after that." |
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12-24-2020, 03:07 PM | #7 | ||
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Most likely a speed sensor was damaged, the wiring to the speed sensor was damaged, or the odd inputs from the speed sensors due to the alignment being off is tripping the DTC for the steering sensor too.
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12-24-2020, 04:15 PM | #8 | |||
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12-24-2020, 06:13 PM | #9 | ||
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Glad to know you've got enough rage for the both of us because all I'm seeing is a post from someone that, at this point, feels like they're actively trying to be angry over a misunderstanding. If you were in OP's shoes would you like to have the spotlight put on the mistake that led up to the damage occurring? I wouldn't, I'd like help understanding what is wrong and how to approach resolving the issues. |
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12-24-2020, 06:58 PM | #10 | ||
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The help op needs is first and foremost an alignment rack and a perhaps a few parts, his bruised ego will recover soon enough and he'll be better coming out the other end. Showering him with wild suggestions that have no relation to the obvious cause and effect at play to spare him the embarrassment is actively hindering him, his misadventure was an accident (i presume). No, I wasn't blaming him, I was replying to and blaming you. Your outlandish reply to his issue was deliberate, it was no accident. |
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