CarProblems
Service Bulletin

2021-2024 Audi MIL On with DTCs P200400, P200600

A manufacturer communication, NHTSA ID 10247133, addresses instances where the Malfunction Indicator Lamp (MIL) illuminates in 2021-2024 Audi vehicles, accompanied by diagnostic trouble codes P200400, P200600, P201400, or P201500 related to the electrical system.

Byeditor david chen2024 Audi Q7
2024 Audi Q7 — Audi MIL on P200400
Editorial illustration generated for this article.
P200400P200600P201400P201500NHTSA ID 10247133Audi MIL onAudi check engine lightAudi electrical system faultAudi P200400Audi P200600

Also applies to

Audi A3
2024
Audi A4
2021–2024
Audi A4 allroad
2021–2024
Audi A5
2021–2024
Audi A6
2021–2024
Audi Q5
2021–2024
▸ Show 2 more
Audi Q7
2023
Audi S3
2022–2024

Symptoms

Owners of 2021-2024 Audi vehicles may notice the Malfunction Indicator Lamp (MIL), commonly known as the check engine light, illuminating on their dashboard. This warning light indicates a potential issue within the vehicle's systems. When the Audi MIL on P200400 condition occurs, it is typically accompanied by specific diagnostic trouble codes.

Fault Codes / DTCs

When the MIL is illuminated, a scan of the vehicle's onboard diagnostic system may reveal one or more of the following Diagnostic Trouble Codes (DTCs):

  • P200400
  • P200600
  • P201400
  • P201500

These codes generally point to issues within the electrical system, specifically related to intake manifold runner control or similar components.

Diagnosis / Trigger Conditions

This manufacturer communication, identified by NHTSA ID 10247133, addresses situations where the Audi MIL on P200400 or related DTCs are stored. The bulletin provides guidance for technicians to properly diagnose the root cause of these electrical system faults. The presence of these specific DTCs is the primary trigger condition for this bulletin.

Repair Procedure Summary

While the bulletin itself provides information for diagnosis and resolution, it does not detail a specific repair procedure in its summary. The purpose of this communication is to equip technicians with the necessary information to address the MIL illumination and associated DTCs. Owners experiencing an Audi MIL on P200400 or any of the other listed codes should have their vehicle inspected by a qualified Audi service center.

Owner Action

If your 2021-2024 Audi vehicle displays the Malfunction Indicator Lamp (MIL) and you suspect it might be related to DTCs P200400, P200600, P201400, or P201500, it is recommended to schedule an appointment with an authorized Audi dealership. They have access to the specific manufacturer communication (NHTSA ID 10247133) and the specialized diagnostic tools required to accurately identify and resolve the underlying issue.

Source: NHTSA ID 10247133

Frequently Asked Questions

What does it mean if my Audi's MIL is on with DTC P200400?
If your Audi's Malfunction Indicator Lamp (MIL) is on and you have a Diagnostic Trouble Code (DTC) P200400, it indicates an issue within the vehicle's electrical system, specifically related to the intake manifold runner control. A manufacturer communication (NHTSA ID 10247133) provides guidance for technicians on how to address this.
Which Audi models are affected by the MIL on with P200400, P200600, P201400, or P201500 DTCs?
This issue, where the Malfunction Indicator Lamp (MIL) illuminates with DTCs such as P200400, P200600, P201400, or P201500, affects various 2021-2024 Audi models, including the Q7, A6, Q5, A3, S3, A4 allroad, A5, and A4.
What should I do if my Audi's check engine light comes on with these codes?
If your Audi's check engine light (MIL) illuminates and you suspect it's due to codes like P200400, P200600, P201400, or P201500, you should contact an authorized Audi dealership. They have the necessary technical information from the manufacturer communication (NHTSA ID 10247133) to diagnose and resolve the electrical system problem.

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