What does it mean to erase codes?
Erasing codes does more than just turn off the MIL. Those lights don’t just come on for no good reason, and the system is designed to help the diagnosis by providing failure records data. When you erase the codes, you also erase the built-in memory of the data that caused the light in the first place.
Is there a way to erase OBD codes?
Several ways are available to erase codes at home, though not every method will work for your vehicle. The only sure way to remove codes is by using a scanner. Connect your vehicle’s diagnostic terminal, usually called the Assembly Line Diagnostic Link (ALDL), to a code scanner and turn the ignition on.
Do you need an OBD-2 engine code reader?
The modern code reader operates on a system that was similar to the previous one, which gives the mechanic different engine codes for each problem. An OBD-2 scanner is an essential tool for any vehicle owner to have. There are several different types of OBD 2code scanners currently on the market.
What happens when your ECU code is reset?
Consequently, the check engine light will turn on immediately or soon. A vehicle that has ECU codes reset will have every system showing Pass/OK/Passed and, in some cases, a couple of Not Applicable if particular systems are yet to be installed.
Can a check engine code be reset on a car?
Let the engine codes disappear on their own if you’ve fixed the source of the problem. Several successful engine ignitions and runs allows the “check engine” light to extinguish. If your car continues to run well for a specific amount of time after that–the time differs for each make and model of car–the code will reset within the computer.
Can you erase a code with a scanner?
I’ve erased codes with a scanner before. On numerous occasions. And no, it is not the same as resetting the ECU. The deal is this: If you have a trouble code that triggers the CEL, erasing that trouble code won’t do much unless you’ve fixed what’s wrong.
What can an OBD2 scanner that can clear codes do?
What Can an OBD2 Scanner Do? Surprisingly enough, an OBD2 scanner is quite a nifty tool. The OBD2 scanner can be used to troubleshoot automotive service codes, as well as to clear the codes. There are several reasons why you’d want to clear a system code from a vehicle. The first of these is to make the check engine light turn off.
What happens when you clear a code on a 93?
Clearing a particular code on the other hand simply tells the system “forget that failure happened and turn off the check engine light.” Not the same thing. On a 93 though the ECU may not be quite that capable.
How can I clear trouble shooting codes on my car?
Some forums can only be seen by registered members. After you create your account, you’ll be able to customize options and access all our 15,000 new posts/day with fewer ads. I hear people use scan tools to clear trouble-shooting codes on their cars. I reset the ECU on my car to clear the codes, but they come back.