What does the P161300 fault code mean?

[Nguyen]

This fault code indicates an immobilizer request error, where the engine control unit and immobilizer module have different power-up timing. The relevant information about this fault code is as follows: 1. Automotive fault codes: These are codes generated by the vehicle's ECU (Engine Control Unit) when a malfunction occurs. Common fault codes are usually related to sensor failures or poor sensor performance, though some mechanical faults cannot be detected by the ECU. 2. Basic fault display: The vehicle's dashboard will show some basic fault indications, but these represent only a small portion. The main diagnostics require specialized equipment - a code reader. There are various types of code readers available, such as X-431 and KT300, but they all work on the same principle and read the same fault codes. 3. Classification: Fault codes are categorized as current codes, history codes, and intermittent codes. Current codes are easy to detect, history codes (as the name suggests) are previously recorded but not cleared fault codes, while intermittent fault codes are not consistently present.