OBD diaglight is onnostic
OBDII instrument panel light is on on 2007 Dodge Magnum
Hello i agree with Hal that the check engine light needs to have a diagnostic performed on it to find out what system is not working properly.You are welcome to visit RECO'S RENCHES AUTO REPAIR CENTER in Pittsburg,Ca.HAVE A BLESS DAY from DR.RECO.
Check engine are telling the engine's not running well. You should have the code pulled, read and repaired as soon as possible. Good luck.