2006 Cadillac CTS Check Engine LIght

P04030 what’s kind a sensor is. And what function

Cual es la función del sensor P0430

When the battery is changed the check engine light will go off since you "cleared" the code by doing that. If the problem is still there, the check engine light will come back on eventually. If the light is off still, go back to auto zone and have them read it again. It might say " code pending", then you will know its about ready to light up again. Good luck.

changing the battery will clear any lights until it reappears again. this is coming from an actual mechanic right through this message however when a check engine light comes one it can be anywhere from just a sensor needing repair or the actual part that the sensor is connected to, with that being said always seek more than just one place. ive noticed auto zone scan tools will read a small bit, advance auto scan tools read more as for mine will also read differently than theirs so always go through more than one auto store/shop.