What's the matter with Toyota's starting function failure?
2 Answers
The meaning of this fault code is a starting system failure, and the vehicle's starting system should be checked. Additionally, it is recommended to go to a 4S shop or auto repair shop for operation, as it is difficult to perform the operation yourself without professional tools. Automobile faults: Automobile faults refer to the phenomenon where the vehicle's systems, assemblies, and components lose their specified functions. According to the severity of the impact on the vehicle's performance and relevance, faults are divided into four categories: fatal faults, which endanger driving safety, cause casualties, result in the scrapping of major assemblies and significant economic losses, or seriously harm the surrounding environment; serious faults, which affect driving safety, cause severe damage to major components and assemblies, or significant performance degradation, and cannot be eliminated within a short time (about 30 minutes) with easily replaceable spare parts and on-board tools. Fault cause classification: Faults can be classified according to their causes into structural faults caused by design issues; manufacturing faults caused by violations of manufacturing processes or incomplete processes; and faults caused by violations of usage regulations (such as overloading, non-compliant fuel, or failure to complete technical maintenance in a timely manner). According to the characteristics (regularity) and predictability of faults, they can be divided into gradually developing faults (such as those caused by wear) and sudden faults (such as sudden fractures caused by material fatigue of parts).
When encountering starting issues with a Toyota, I often face this situation too. The most common cause is a dead smart key battery—those things drain as easily as watch batteries, and replacing one only costs a few bucks. Or it could be an aging car battery, especially in vehicles over 5 years old, where you hear clicking sounds when turning the key but the engine doesn’t respond. In that case, test the voltage to see if it’s below 12 volts. Sometimes, Toyota’s starting system is overly sensitive; strong electromagnetic interference or moisture near the key can cause it to malfunction, so try placing it in a dry spot first. Worse yet, a faulty starter motor or relay might cut off the current, requiring a shop visit for diagnosis. I recommend carrying a spare key and having technicians check the system during every maintenance to prevent minor issues from escalating.
