What does trouble code C0018 mean?

[NicoleLee]

C0018 trouble code, applicable to all automobile manufacturers, means Left Rear Inlet Control (Subfault). You cannot simply remove the negative ground cable of the battery to clear the trouble code, as it may cause the following issues: 1. Data loss: This may cause the control center computer of some vehicle models to lose normal records. Some vehicle models' control computers have an automatic memory function. After removing the negative ground cable of the battery, the engine operation data stored in RAM will be lost, resulting in poor performance of the vehicle for a considerable period after repair, or the reappearance of previously cleared trouble codes after driving for some time. 2. Malfunctioning features: Sometimes it may also cause some useful features to malfunction, such as the audio lock function, which is one of the common situations. In this case, the audio system will need to be repaired separately.