Try disconnecting the battery for 10 minutes--if light doesn't reset then problem still exists--have engine scanned to determine problem
It is possible to repair the 1992 deville check engine light if it is malfunctioning.
You can not disconnect the check engine light.
The check engine light on a 1999 Cadillac DeVille can be reset by disconnecting the battery for 30 seconds. The light will immediately come back on if the problem still exists.
To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. This will only reset the check engine light. So if there is a persistant problem with the engine, the light is likely going to stay on. To turn off the check engine light on a 1999 Toyota Camry you can disconnect the battery. This will only reset the check engine light. So if there is a persistant problem with the engine, the light is likely going to stay on.
The check engine light would illuminate.
A quick way to reset the check engine light would be to disconnect the battery for a short while
you disconnect the battery for a couple minutes.
Disconnect the battery for 15imutes
disconnect the battery
If the problem has been fixed and the light remains on you need to disconnect the battery and then reconnect it. That should reset the check engine light.
Disconnect battery and leave for about 10 min. Then reconnect. The check engine light went away on mine.
Disconnect the negative battery cable for about two minutes and that should reset your check engine light.