2019-2023 Audi e-tron Suspension DTC U12B800 Warning

Symptoms

Owners of affected 2019-2023 Audi e-tron vehicles will typically not experience any noticeable driving symptoms related to this issue. The TSB explicitly states that there are "No customer concerns" reported for this condition. These Diagnostic Trouble Codes (DTCs) are usually discovered during routine maintenance, pre-delivery inspection (PDI), or other diagnostic work performed by a technician, rather than being indicated by a dashboard warning light or performance issue.

Fault Codes / DTCs

If your Audi e-tron is diagnosed, one or both of the following Diagnostic Trouble Codes (DTCs) may be found stored in the suspension control module, designated as J775 (address word 0074). This module is responsible for managing the vehicle's suspension system.

The term "passive/sporadic" indicates that the fault is not currently active but has occurred at some point in the past, or intermittently. For the Audi e-tron suspension DTC U12B800 and P000000, this means the condition was temporary or intermittent and is not causing an ongoing issue.

Important Warnings and Owner Information

This Technical Service Bulletin provides critical guidance for technicians and owners regarding the Audi e-tron suspension DTC U12B800 and P000000. It is crucial to understand that these specific DTCs, when found in the suspension control module (J775) without any other accompanying diagnostic trouble codes in other control modules, do not necessitate repair.

Audi explicitly states: "If one of the DTCs described are stored in the suspension control module and no further DTCs are available in other control modules, then do not repair or replace. The DTCs listed above have no effects on the system characteristics." This means that attempting to repair or replace components based solely on the presence of DTC U12B800 or P000000, without other related fault codes, is unnecessary and will not resolve any actual vehicle performance issues. Furthermore, this TSB is informational only and is not applicable to any Audi warranty claims, as no repair is required.

Revision History

This Technical Service Bulletin has undergone several revisions to ensure accuracy and include the latest model year information. The revisions are as follows:

• Revision 4: Revised header to include additional model years.
• Revision 3 (June 9, 2022): Revised header to include additional model years.
• Revision 2 (August 2, 2021): Revised header to include additional model years.

This bulletin, identified as 43 23 75 2058686/4, supersedes Technical Service Bulletin Group 43 number 22-60, which was dated June 9, 2022. Owners searching for information on the older bulletin 22-60 should refer to this updated document.

Technical Notes for Service Centers

For service technicians, it is important to note that all part and service references provided in this TSB (2058686) are subject to change and/or removal. Technicians should always check with their Parts Department and/or ETKA for the latest information and parts bulletins. Additionally, the Repair Manual should be consulted for fasteners, bolts, nuts, and screws that require replacement during any repair procedures, though no repair is specified for these particular DTCs.

Source: NHTSA ID: 10237386