What does the vehicle fault code mean?
1 Answers
Automotive fault codes are error codes generated by the vehicle's computer ECU after analyzing malfunctions. Common fault codes are usually caused by sensor failures or poor sensor performance. Below is more related information: Fault codes: 1. The vehicle dashboard will display some basic fault indications, but these are only a small part. The main faults need to be read using a diagnostic tool—a code reader. There are various types of code readers, such as X-431 and KT300, but their working principles and the faults they read are the same. Additionally, fault codes are categorized into real codes, historical codes, and intermittent codes. Real codes are easy to detect, historical codes, as the name suggests, are leftover unresolved fault codes from the past, while intermittent fault codes are not fixed. 2. For electronic control systems that support static code reading (only turning on the ignition without starting the engine) and dynamic code reading (requiring engine startup), it is important to follow the correct sequence and conversion procedures. Failure to do so may result in unsuccessful fault code retrieval. Many vehicle models have strict requirements for these two reading modes. Static codes (KOEO mode) must be read first. If the system does not output a "11" normal fault code after reading static codes, and dynamic codes (KOER mode) are read immediately, it may lead to fault distortion and misdiagnosis during repairs. This can often create a false impression for technicians. Also, note that before reading dynamic codes, static codes should generally be cleared. Before performing dynamic code self-diagnosis, the jumper wire connected to the diagnostic socket during static code reading should be removed, followed by clearing the static fault codes.
