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Old 04-10-2013, 02:10 PM
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Esc and abs lights on and off with codes

Hoping someone can help with this. I have been getting the esc,abs,service 4 wheel drive lights lately. The brake pedal pulses as well. Had the codes pulled this morning. The front left abs sensor has gone bad-got that one. But some of the codes have me stumped. U0100,U0101 lost ECM and Tcm communication, any ideas on this? Also U140E, and B2202 these I can't find and have no idea what they are. The person at Advance Auto that pulled the codes also said the battery showed low-B2100. Could anyone offer some guidance on the U140E and B2202? Also the P0700 code popped up. Thanks for any help with these.
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Old 04-10-2013, 04:38 PM
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Re: Esc and abs lights on and off with codes

WK's have an infamous slew of electrical issues related to low battery voltages. If your battery is shite, I'd start by replacing it with a new one. It's quite possible that this fix could resolve the rest of your codes.
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Old 04-10-2013, 04:53 PM
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I am getting the exact same thing right now. But my code is P0571.
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Old 04-10-2013, 05:23 PM
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Re: Esc and abs lights on and off with codes

I'm going to replace the battery tonight and hope that resolves it. I looked at the abs sensor on the front wheel and it looks like a lot of fun to do. Looks like the front wheel,rotor and all have to come off. After the battery I will fill you in on the progress. Thanks for the help
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Old 04-13-2013, 09:18 AM
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Re: Esc and abs lights on and off with codes

Update-the lights have gone away for the most part. Still getting them once every couple days. Stutter in the brake pedal occasionally. To replace the abs sensor on the front, do the brakes have to be bled?
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