Vehicle Questions and Answers
Welcome to the Vehicle Q&A Hub. Find answers to your automotive questions, share your experiences, and get expert advice on vehicle maintenance, troubleshooting, and more!
3998 views
7 answers
To clear the check engine light, start by inserting the key into the ignition without turning it on. Next, press both the brake and accelerator pedals with your feet simultaneously. With both pedals still pressed down, turn the ignition to the "on" position. Watch for lights flashing on the dashboard. When the service indicator light blinks and disappears, release the pedals and turn off the vehicle. Finally, restart the car, and the check engine light should be reset.
Disconnecting the negative battery terminal temporarily resolves the issue, but only for one engine cycle. Once the engine is turned off and restarted, the warning light immediately reappears. I've attempted this method multiple times after installing new parts or simply as a troubleshooting measure.
In order to turn off the check engine light on a 2003 Ford Ranger, you must utilize an OBD II scan tool to view the code and then erase it using the same tool.
To clear the check engine light on a 2003 Ford Ranger with the key out of the ignition, press down on both the brake and gas pedals. Then, turn the key to the "on" position while keeping the pedals pressed. You'll see the service indicator light flash. Turn off the ignition and let go of the pedals.
Simply remove the negative battery cable for about half a minute to a minute.
The Battery disconnect method was the only thing that worked on my 2003 Ford Ranger!
Disconnect both battery cables and briefly connect them to eliminate any remaining electric charge in the vehicle. Reattach the cables after doing so to either resolve the issue or perform a quick fix.