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B126A Code

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Old Nov 3, 2016 | 02:07 PM
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Default B126A Code

Carista scan shows B126a on my 2013. Body Convenience Control. Any ideas? No symptoms exhibited in driving the car.
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Old Nov 3, 2016 | 06:05 PM
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Possibly remote engine starter ECU communication stopped
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Old Nov 3, 2016 | 06:30 PM
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Thought about the remote start but that works fine. Thanks.
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Old Apr 18, 2020 | 08:26 PM
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I am seeing the same error code in the scanner. the remote starter works as well. I have an Idatalink aftermarket bypass module. I am having a battery drain issue, and wondering if this error code has anything to do with that

ES350 2015
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Old Apr 20, 2020 | 08:59 AM
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I assume it is possible but with the code, I was not getting a parasitic draw.
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Old Jan 23, 2023 | 10:04 AM
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Originally Posted by jackspare
I am seeing the same error code in the scanner. the remote starter works as well. I have an Idatalink aftermarket bypass module. I am having a battery drain issue, and wondering if this error code has anything to do with that

ES350 2015
about 2 months ago I installed aftermarket MPC kit that plugs right into stock hardness. Car had no issues till about a month of having installed kit. All of the sudden the car does not start. Push button does not start engine screen tell me to depress brake pedal . I found a way to bypass pressing pedal by leaving push start button pressed for 10 seconds . engine starts, to put in gear I have to also bypass gear shifter . Just bought xtool d8 scanner . one of the codes it gave me b126a. Has anyone been successful in clearing this code or had similar issues as i do. Can it be the aftermarket remote start system I installed. I can try reset it see if it makes a difference. If that does not work I may remove it completely and see if that helps . what do you guys think
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