How Do You Reset Your Car S Computer

If your check engine light flashes this signifies that the pcm is in limp home mode and the car should be taken to a repair facility immediately.

Insert the fuse back in to the box. Resetting your car computer might turn off the check engine light and correct most of the problems with your car that are computer related. Reconnect the battery terminal. On the other hand you can go about the computer reset procedure with the car battery still on and attached to the car.

A popular method of resetting the check engine light although not necessarily recommended is to disconnect the car battery to remove the power source to the car s central computer. The following is an easy to follow guide on how to reset your car computer with basic tools. Getting your car s computer to reset is an important thing especially if you really need to pass your emission test. However if the reason you are resetting is to clear a.

That is why it is good that you now know how your car checks the different emission parts and uses a drive cycle that tests all the sensors during a drive. Resetting the car computer with the battery turned off. You can use two methods for resetting your car s computer. Accelerate to 57 mph with half throttle set the cruise and go for five minutes.

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Many people like to reset the check engine light to see if the car s on board computer triggers the same alert. Open the bonnet of the car and locate the battery. For better performance when resetting a car s computer. This 45 minute procedure requires safety gloves electrical tape a bucket baking soda water a sponge a towel and the vehicle key.

Keep it between 55 and 60. Your car should now be reset. To reset a car s computer disconnect the battery clip the battery cables together clean all of the battery terminals and connectors reconnect the battery cables and start the vehicle. Coast as much as possible to the next exit turn around and head back accelerating using 3 4 throttle to 57.

Leave the negative terminal disconnected for 10 minutes make sure your car stereo doesn t have a code and if it does that you have the.