2022-2023 Audi Q5 Q3 Q7 MIL On for DTC P240700

Symptoms

Owners of affected Audi vehicles may notice that the Malfunction Indicator Lamp (MIL) is illuminated on their dashboard. Typically, no other relevant error messages or symptoms are logged in the engine control unit when this specific condition occurs.

Fault Codes / DTCs

When diagnosing the issue, workshops will find the following Diagnostic Trouble Code (DTC) stored in the Engine Control Module, identified as -J623- (address word 0001):

• DTC P2407 (P240700): "EVAP emission control system leakage diagnosis pump current fluctuating"

Diagnosis / Trigger Conditions

The root cause of the illuminated MIL and the stored DTC P240700 is identified as overly sensitive On-Board Diagnostics (OBD). This heightened sensitivity leads to the erroneous detection of a fluctuating current in the EVAP (Evaporative Emission Control System) leak detection pump, even when no actual fault exists. This condition triggers the Malfunction Indicator Lamp and logs the P240700 fault code, prompting owners to seek service for their Audi Q5 Q3 Q7 MIL P240700 issue.

Repair Procedure Summary

The primary repair for the Audi Q5 Q3 Q7 MIL P240700 issue involves updating the software in the Engine Control Module (-J623-, address word 0001). Technicians must first consult Technical Service Bulletin 2011732, which outlines the Software Version Management (SVM) operating instructions. The update process requires using a VAS tester equipped with the current version of ODIS (Windows 10). During the update, the SVM action code, such as "6" for certain Q5 PHEV models, will be entered to ensure the correct new software version is installed. This new software specifically addresses the over-sensitive OBD diagnostics that trigger the P240700 fault code, thereby resolving the illuminated MIL. The bulletin lists specific old and new software part numbers and versions for the Q7 2.0l, Q3, and Q5 PHEV models, ensuring the correct update is applied based on the vehicle's model year.

Required Tools or Parts

To perform the necessary software update, service technicians will require the following specialized equipment:

• VAS 6160/VAS 6150: This is a VAS tester that must be running the current version of ODIS (Windows 10) software to successfully execute the Engine Control Module update.

Warranty Information

This software update, identified by Audi Technical Service Bulletin 2071770/6, is covered under Audi's warranty for vehicles up to 48 months or 50,000 miles, whichever occurs first, falling under Claim Type 110. For Audi Certified Pre-Owned (CPO) vehicles, the repair is covered under Claim Type G10, though owner verification is required. The specific service number for this bulletin is 2048, and the damage code to be used for claims is 0040. Labor operations include "Software Update (Includes checking for DTCs)" with labor code 0151 0000, and "Charge Battery" with labor code 2706 8950. The diagnostic time is determined by the diagnostic protocol, with a maximum allowance of 50 Technical Units (TU). Importantly, no allowance is provided for road tests either before or after the service, indicating that the diagnostic and repair process is primarily software-based and does not typically require extensive driving verification.

Important Warnings

• "If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only." This means that owners of vehicles no longer covered by warranty may be responsible for the costs associated with this repair.
• All warranty claims submitted for payment must strictly adhere to the guidelines outlined in the Audi Warranty Policies and Procedures Manual.

Source: NHTSA ID 11002109