I got a fancy scan tool (Autel MaxiAP AP200 Bluetooth OBD2 Code Reader) that shows these codes on my Malibu 2.0 Premier:
Electronic brake control module fault
Active safety control module fault
Instrument cluster fault
Parking assist control module fault
Body control module fault
U0420-71
U0151-00
What do the above fault codes mean? What should I do?
It looks like U0151 and U0269 are not current, just in history. U0420 can happen during a remote start and there is a bulletin for it. Are you experiencing any problems with these systems? If not, I’d clear them and see if they return. If you have a warning light on or are getting problems don’t clear and take it in or get advice from others.
Update:
There are no warning lights. I cleared them all let’s see what happens. I got Autel AP200, It’s amazing for $60. It has one free generic code reader, but You need to pay $15 extra for each software. I got the GM software downloaded. It shows you all the information. I also got Mercedes Benz software for my wife. I was able to reset her airbag light with it.
U codes are data stream issues. I’ve found they can be random. If consistent usually a module P , B , etc. code failure will also be set. I think they come from spikes in the system as I’ve seen them random in my fleet. I get interior light codes from putting in LED’s in the dome lights.
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