2022-2023 Audi Q5 P240200 DMTL Pump Control Circuit High TSB

Symptoms of the P240200 DMTL Pump Issue

Owners of certain 2022-2023 Audi Q3, Q5, and Q5 Sportback models, including the 2022 Audi Q5 e quattro, may experience the Malfunction Indicator Lamp (MIL) illuminating on their dashboard. This "MIL light is on" condition signals a potential issue with the vehicle's evaporative emissions system, which is critical for environmental compliance and vehicle performance.

Understanding DTC P240200

When the MIL light is on, a diagnostic scan may reveal the fault code P240200. This specific Diagnostic Trouble Code (DTC) is identified as "Evaporative Emission System Leak Detection Pump Control Circuit High." The code indicates a problem within the control circuit for the Leak Detection Pump (DMTL pump), which is a crucial component of the evaporative emissions system responsible for detecting leaks. This DTC is typically stored in the Engine Control Module (ECM), specifically module J623 (address word 0001).

Audi's Approach: Information Gathering via TSB 20 23 54 2069732/1

Audi of America issued Technical Service Bulletin (TSB) 20 23 54 2069732/1, dated March 27, 2023, to address this specific condition. The TSB highlights that various parts have been replaced under warranty for the P240200 DMTL pump issue, but often without identifying the root cause. As a result, Audi has not yet implemented any production changes, indicating that "no issue has been identified" at the manufacturing level.

Instead of providing a repair procedure, TSB 2069732/1 is a request for cooperation from service technicians. Audi aims to gather more comprehensive data on the DTC P240200 and its associated conditions. This collaborative effort is intended to assist in diagnosing potential issues and to better understand the circumstances under which this fault code appears, particularly concerning the "Evaporative Emission System Leak Detection Pump Control Circuit High" fault.

Important Warnings for Owners and Technicians

Audi explicitly states that "This TSB is informational only and not applicable to any Audi warranty." This means that the bulletin itself does not authorize warranty claims for specific repairs based solely on its content. Furthermore, technicians are advised to "contact the Audi Technical Assistance Center (TAC) before replacing any parts." This instruction is crucial to prevent unnecessary part replacements that may not resolve the underlying issue and to ensure proper diagnostic procedures are followed.

Recommended Service Steps

For vehicles exhibiting a "MIL light is on" condition with DTC P240200, Audi requests that technicians follow specific steps to assist in data collection and diagnosis:

1. Verify the condition: Confirm that the Malfunction Indicator Lamp is illuminated and that the DTC P240200 is stored in the ECM (J623).
2. Contact TAC: If the vehicle is still within its New Vehicle Limited Warranty period, the technician must contact an Audi Technical Assistance Center (TAC) consultant before proceeding with any repairs or part replacements.
3. Attach Documentation: It is required to attach the DTC information and a diagnostic log to the TAC Web Ticket. This data helps Audi engineers analyze the frequency and conditions under which the Audi Q5 P240200 DMTL pump fault occurs.

Production Solution Status

As of the TSB's publication, Audi has stated that "No changes to production have been made, as no issue has been identified." This indicates that the manufacturer does not currently consider the P240200 condition to be a widespread manufacturing defect requiring a production line change.

Source: NHTSA ID: 10233361