What does Audi fault code 00256 mean?
2 Answers
Audi fault code 00256 indicates a communication failure. Relevant information about Audi fault code 00256 is as follows: 1. Solution: Parallel a 103 ceramic capacitor between the signal lines of the computer board, or replace it with a more interference-resistant C3Y computer board to eliminate the fault. 2. Experience summary: During maintenance, it is important to observe the indicator status on the panel when the fault occurs and quickly identify the cause of the fault based on the fault codes provided by the company. If the outdoor pipe temperature sensor fails or the signal connection line between the indoor and outdoor units is broken, the "timing indicator light" (without digital display function) will flash once per second. If there is a digital display function, it will show the E2 code. For the three-phase A series, the "temperature light" will flash while all other indicator lights remain off.
I've been driving an Audi for many years and often help friends troubleshoot fault codes. Code 00256 usually indicates an issue with the ABS hydraulic pump. The ABS (Anti-lock Braking System) helps prevent wheel lock-up during hard braking to maintain stability. If this code appears, it could be due to a faulty pump relay, a malfunctioning pump itself, or wiring issues, causing the ABS to stop working. Ignoring it may lead to loss of control during emergency braking on slippery roads, increasing the risk of accidents. It's recommended to inspect the vehicle immediately when this code appears—first confirm the specific issue with a diagnostic tool, then take it to a professional repair shop, such as a 4S dealership, which will thoroughly test the pump and electrical circuits. Pay attention to warning lights like this during regular maintenance to prevent potential hazards. I once encountered a similar situation, and fixing it promptly gave me much more peace of mind while driving.
