Does directly clearing engine trouble codes have any impact?

1 Answers
HazelMarie
07/29/25 10:05pm
Directly clearing engine trouble codes has minimal impact and no adverse consequences. Vehicle trouble codes are categorized into temporary trouble codes and permanent trouble codes. Among these, temporary trouble codes can be cleared on their own. There are two methods to clear engine trouble codes. Below is a detailed introduction to the clearing methods: Using a diagnostic scanner: One method is to use a diagnostic scanner to directly clear the codes. This approach is straightforward and has no effect on other vehicle functions. Disconnecting the battery's negative terminal: Another method is to disconnect the battery's negative terminal, cutting off power to the entire vehicle. This clears the temporarily stored trouble codes in the electronic control unit. However, this method also erases temporary data such as adaptive learning values, time settings, and password settings.
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