To reset the check engine light on a Dodge, open the hood, disconnect the battery, turn all of the lights on, honk the horn to exhaust the residual power, and reconnect the battery. This 30-minute procedure requires the vehicle key, ear protection and rubber gloves.Know More
Park the vehicle in an open, dry location where the sound of the horn will not disturb others. Do not attempt this procedure when it is raining. Put on rubber gloves, open the hood, and disconnect both battery terminals.
Put on ear protection. Place the vehicle key in the ignition, turn on all of the lights, and honk the horn repeatedly. When the lights go off and the horn stops sounding, the vehicle has no remaining electrical power.
Remove the key from the ignition, and reconnect the battery terminals. Verify that the positive cable connects to the positive terminal, and the negative cable is attached to the negative terminal. Close the hood, and remove the rubber gloves.
Start the vehicle, turn off the lights, and examine the console. If the check engine light is not illuminated, the reset was successful. If it remains lit, repeat the reset procedure.
Resetting a check engine light requires completing a diagnostic test on car's computer, which varies up to $100, as of April 2015. Dealerships generally charge a higher cost to complete a diagnostic, while smaller shops may waive the fee if the driver has the required repairs done there.Full Answer >
To reset a check engine light on a Toyota Echo, a diagnostic machine must be connected to the car's computer and the codes must be reviewed and repaired. The check engine light on a Toyota Echo is used to notify the driver of a problem in the vehicle's engine system. Once the code is reset, the light on the dashboard will turn off.Full Answer >
To reset a check engine light yourself, disconnect the car battery, then turn on the headlights for a few minutes to drain the remaining energy and cause a hard reset. Finally, reconnect the battery.Full Answer >
If the problem has been diagnosed and fixed but the check engine light is still on, either use an auto scan tool or simply disconnect and reconnect the battery. If there is still a problem with the engine, disconnecting the battery and resetting the light will not make the light turn off. Also, if the vehicle's radio has an anti-theft setting, disconnecting the battery may make the radio stop working until a specific code is put in to fix it.Full Answer >