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le choix nest grand

ne sera plus d'aucune utilité

pour ce qui est du code etc., ce sera de l'histoire ancienne une fois ...

une suggestion

Si on parle d'un système informatisé ...

Au contraire, selon moi il ne faut pas le considérer comme de l'histoire ancienne mais en lisant ce qui suit on comprend que le diagnostique d'erreur est enregistré en mémoire durant un laps de temps plus ou moins long :

Question : Hello all. I'm hoping I can get some clarification on the difference between "History" codes and "Current" codes displayed on the DIC. My understanding is that if the code is a history code designated with a "H" after the trouble code, then the problem causing the code to appear has cleared, or is no longer occurring. If the code is a current code designated with a "C" after the trouble code, then the issue causing the code to be set is still occurring and the problem needs to be addressed. Following this logic, if the codes that are appearing are history codes, they will clear from the DIC after a certain time period, or after a certain number of starts without the problem that set the code occurring.

Is this close to accurate? Can anyone elaborate?

R: A current code is one set during the current ignition cycle because the computer (ECM, BCM) noticed a problem. If during the next ignition cycle the computer does not see the problem, the current code becomes a history one and will stay that way during consequent 50 ignition cycles. After that it will disappear.

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