Volkswagen Audi Error Code P1624: How to Fix It

Q: What does error code P1624 mean on a VW or Audi?

It means the engine control module has received a request from another module (like the transmission or ABS) to turn on the check engine light. It's a communication error between modules.

Q: Can low battery cause P1624?

Yes, low battery voltage is a common cause. Ensure the battery is fully charged and terminals are clean and tight.

Q: Do I need a special scanner for VW P1624?

A standard OBD2 scanner can read the code, but to see which module is requesting the MIL, you need a professional-grade tool that can access all vehicle modules (e.g., VCDS or equivalent).

Q: Is it safe to drive with P1624?

Generally yes, but the check engine light will be on. However, if other codes are present, address those first. It's best to diagnose and fix the issue soon.

Q: How do I clear code P1624?

You can clear it with an OBD2 scanner. But if the underlying issue isn't fixed, the code will return. Always diagnose before clearing.

Abstract

Error code P1624 in Volkswagen and Audi vehicles indicates that the engine control module (ECM) has received a request from another module (like the transmission or ABS) to turn on the malfunction indicator lamp (MIL/check engine light). This typically points to a communication issue between modules, often caused by low battery voltage, a faulty module, or wiring problems.