Have someone scan the car... and erase all codes... if that's not it, your module is bad
if it keeps flashing on and off
A check engine flashing indicates an engine cylinder misfire
it's when you expose a part of your skin to someone else.
Depends where you are standing and if you are color blind or not.
If they have a green flashing light on top of their car, then they are a Doctor, and have as much priority as a regular emergency vehicle.
If the hold light keeps flashing on a Kia Sportage a sensor may be malfunctioning in the light. The flashing light could also indicate that a speed sensor is going bad.
Someone flashing a torch in front of them
Ones with no flashing lights or strobe lights.
It is possible that the dome light needs to be replaced on the Dodge Neon if the odometer is flashing the word fuse. If the car is also not starting this could be caused by a bad starter or bad battery.
Loose connection somewhere. Bad switch maybe.
flashing blue means you have an electrical issues with the coolant sensor. you probably have a bad sensor that needs replacing in the coolant bottle hope that helps Phil