Whats the difference between stored codes and pending codes?
Moreover, what is a stored code?
Active codes (aka STORED codes) are live codes or malfunctions that are keeping your Check Engine Light on. Just because your Check Engine Light is off doesn't mean the code or malfunction disappeared, it just means that the code setting conditions haven't occurred for two or more operations of the vehicle.
Additionally, do pending codes clear themselves? Each throws a very distinct code which will not shut itself off until the issue is fixed. If the condition that caused it to come on is a minor fault, and stops occurring, then yes, it will clear itself. If the condition indicates a larger problem, then it will stay on until cleared manually.
Subsequently, one may also ask, what does a pending code mean?
Active codes are live codes or malfunctions that are keeping your Check Engine Light on. Pending codes mean that the OBD-II monitoring system has failed the operation of an emission control system at least once and if it fails again the Check Engine Light will be turned on and the malfunction becomes an Active code.
How do you read codes?
The best way I've ever discovered to read and understand someone else's code is to:
- Find one thing you know the code does, and trace those actions backward, starting at the end. Say, for example, you know that the code you're viewing ultimately creates a file with a list of movie titles.
- Rinse and repeat.