To reset the check engine light you must have an OBDII code reader with the reset function. The underlying fault that caused the light to turn on must be fixed or the light will turn on again once the condition is detected.
The light will be reset if the battery is disconnected for about 10 minutes but will turn on again if the fault that caused the light to turn on is not fixed. Also, the engine will not run at its best until the computer is retrained.
A 2002 Jeep Wrangler does not have a reset switch.
To turn off the check engine, disconnect the positive battery cable for 30 seconds, then reconnect.
To reset the check engine light on a 2005 Ford Freestar, you can disconnect the negative battery terminal for about 15 minutes. This will reset the vehicle's computer and clear the light. Alternatively, you can use an OBD-II scanner to read and clear any trouble codes. However, if the underlying issue isn't resolved, the light may come back on.
You should ensure that you have had any needed repairs done to your vehicle when the check engine light comes on. If you have an ODB reader and already performed the repairs, you can use it to reset the check engine light, otherwise it can take time after a series of cold starts, and a mix of city and highway driving for the system to reset itself.
There isn't a reset switch. The light is reset with a scan tool after the cause of the trouble code has been repaired.
Remove battery cable, reattach first step.
on the driver side by the front speaker up underneath is a switch that turns off the check engine light.
You do not have to reset the computer after this repair. If the Check Engine Light is on it is not because you made this repair. If you disconnected the battery the computer will reset itself.
No reset switch on a Dodge Ram.
Dodge does not have a reset switch.
That is not how you reset the check engine light. That trick can only be used to reset the airbag light (something I have had to do often). Reseting the CEL involves doing specific maneuvers with the screw on the ECU. Check out SR20forum.com
Two screws at the top of dash and one screw each behind the flasher switch and a cover plate on the other side from the flasher switch. Reset switch in at the bottem right of the gauges after removing trim. Slide swith to reset.