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Discussion Starter #1
Hi so I have a 2013 mazda 3 gx, my brake pedal switch died a little while back and i replaced it but i got a problem now, my abs, dsc and parking brake light is on and it wont come off... does anyone know why this would be happening?
 

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You might just need to clear the codes that were generated. Some of these don't go away on their own just through repeated drive cycles. If you don't have a scan tool, have them perform a free scan at AutoZone or Advance Auto Parts or wherever. Just be sure to jot down the codes before they erase them in case they come back.
 

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Discussion Starter #4
I scanned it about a month and a half ago, heres the codes from then
p0703

u0422

u0428

u0100

c0040

u3003
I know tcs and abs can be affected by a tire not being the same size, I had 4 215/50/17 but someone slashed one so i put a 205/45/17 on temporary, but i got my winters on and their all 205/55/16, ill try clearing it tomorrow and trying, but from what i heard is the brake pedal switch i couldda put it in wrong, apparently its you put it in first, then plug the switch in, but my switch was also a used one from a 08 3
 

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Discussion Starter #5
so I hooked the scan tool to the car, it gave me just 1 code, U3003, but isnt u3003 linked tot he alternator or battery?Also the EV light to the right in the first image was blinking on and off slowly

 
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