The check engine light on a Dodge Neon indicates an emissions system failure.Once the problem has been diagnosed and corrected, the engine light should turn off without further intervention. If this does not occur, steps can be taken to reset the engine light manually.
Open the hood.
Remove the clamp from the negative battery terminal and leave it off for approximately fifteen minutes. The negative terminal is marked with a minus sign.
Reconnect the battery terminal.
Pull the yellow fuse labeled "Fuel Pump". The fuse is in a box behind the vehicle battery.
Leave the fuse out for thirty seconds.
Replace the fuse and start the car. The engine may have trouble starting the first time but vehicle memory settings will not be lost.
