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when i drive my truck around for a bit codes get set off and my brake light and anti lock brake light pop on. I have an engine code reader, i popped it in and it told me MAF and MAP sensor overvolt? i notice that when i initially start my truck cold, if i give it gas the lights brighten and as the rpms drop the lights dim a bit. maybe whatever is causing my lights to brighten is giving my sensors too much voltage? i also notice if its very cold outside the codes arent set off (temps around freezing.) any suggestions?

I think the dim lights are because of your alternator. You should go have your charging system checked. Most auto parts stores will check it for free. Not sure what to say about your codes.

i have the same problem but someone told me that when i changed the brakes i push in the caliper and it messed up my anti lock brakes but that was 4 months ago and i'm still drivin with the anti lock light on.