What is the reason for the Audi P223700 pump current open circuit fault?

[DominicFitz]

Current open circuit fault is caused by an excessively lean air-fuel mixture and insufficient fuel injection. The following is an introduction about Audi: 1. Introduction: A luxury car brand with a logo of four interlocking rings. Currently a subsidiary of Volkswagen AG in Germany. On December 20, 2018, Audi ranked 51st in the 2018 World's 500 Most Influential Brands list. 2. History: The history of German Audi AG in manufacturing cars and motorcycles can be traced back to the 19th century. Originally, four automobile companies in Saxony - Audi and Horch in Zwickau, Wanderer in Chemnitz-Siegmar, and DKW in Zschopau - made outstanding contributions to the advancement of the German automobile industry at that time.

[LiamFitz]

I've dealt with quite a few Audi fault codes. The P223700 code usually indicates an open circuit in the fuel pump circuit, meaning the current is interrupted and the fuel pump isn't receiving power. The most common causes are a blown fuse, especially the relevant one in the car's main fuse box; or a faulty relay that's stuck and not working; then there are wiring issues like loose connections, corrosion, or aged/broken wires; a malfunctioning fuel pump control module can also cause this. You need to check step by step: first pull out the fuse to inspect, replace it if blown; if that doesn't work, check the relay by starting the engine and listening for a clicking sound; finally examine wiring connections and the module. Ignoring it may lead to hard starts or stalling/breakdowns. It's better to tow it to a professional repair shop for resolution - usually doesn't cost too much.

[DylanRose]

Let's talk about car faults. P223700 indicates an open circuit in the fuel pump current, and there are many possible causes. The key issue lies in circuit interruption: such as a blown fuse (due to overload), worn-out relay contacts, malfunctioning control module, or poor wiring connections. In Audi vehicles, this is often caused by water ingress or long-term vibration leading to loose connections. It's recommended to use simple tools to check the fuse box first, prioritizing the elimination of minor issues. If not repaired promptly, fuel pump failure will starve the engine of air, increasing road risks. Don't skimp on these inspection costs.

[IvanAnn]

Encountering P223700 trouble with your Audi requires immediate attention, as a fuel pump power failure can be dangerous. The root cause lies in circuit interruptions: blown fuses, faulty relays, or control component malfunctions. Corrosion or disconnection of wiring often occurs in the chassis area. Pull over immediately to check the fuses; if replacing them doesn't resolve the issue, head to a professional repair shop for diagnosis. Delaying may lead to engine stalling and potential accidents—safety should always come first.