DTC U12B800 or P000000 in the suspension control module of an Audi vehicle indicates a problem with the suspension system.

DTC U12B800 or P000000 in the suspension control module of an Audi vehicle indicates a problem with the suspension system. Here are some instructions for diagnosing and resolving this issue:

Perform a visual inspection of the suspension system, checking for any signs of damage or wear, such as leaking shocks or damaged bushings.

Check the wiring and connectors for the suspension control module for any signs of damage or corrosion.

If no visible issues are found, perform a diagnostic scan using an Audi-approved scan tool to identify the specific fault code(s) stored in the suspension control module.

Depending on the specific fault code(s) found, the following actions may be necessary:

Reset the suspension control module by clearing the fault code(s) and performing a calibration procedure.

Replace any damaged or worn suspension components, such as shocks, struts, or bushings.

Repair or replace any damaged wiring or connectors.

Replace the suspension control module if it is determined to be faulty.

After any necessary repairs have been made, perform a road test to ensure that the suspension system is functioning properly and that no fault codes are stored in the suspension control module.

It is recommended that these instructions be followed by a qualified technician with experience working on Audi vehicles.