Can trouble codes be cleared by yourself?
1 Answers
Trouble codes can be cleared by yourself. Automotive trouble codes are divided into temporary trouble codes and permanent trouble codes. Among these two types, the ones that can be cleared on their own are temporary trouble codes, which are faults detected momentarily during vehicle operation. Permanent trouble codes: Permanent trouble codes may have a certain impact on the judgment of the vehicle's onboard computer, sometimes leading to misjudgments. Symptoms of misjudgment include sudden idle shaking, unstable RPM, certain warning lights suddenly illuminating, etc. ECU: The ECU contains two types of memory: one that can retain data after power-off and another that does not save data after power-off. Trouble codes are stored in the latter type of memory, which does not retain data after power-off, so the trouble codes are automatically cleared once the power is cut. However, this method only addresses the symptoms, not the root cause. As long as the fault remains unresolved, the diagnostic program will continue to generate trouble codes.