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

Symptoms

Owners of 2022-2023 Audi Q3, Q5 e quattro, and Q7 vehicles may notice the Malfunction Indicator Lamp (MIL) illuminated on their dashboard. This is the primary symptom indicating an issue that needs attention. If you experience an illuminated MIL, particularly in conjunction with the Audi Q7 MIL P240700 fault, it's important to have your vehicle diagnosed promptly.

Fault Codes / DTCs

When the MIL is illuminated for this condition, a specific Diagnostic Trouble Code (DTC) will be stored in the Engine Control Module (ECM), identified as -J623- (address word 0001). The relevant fault codes are:

Code	Description	Module
P2407	"EVAP emission control system leakage diagnosis pump current fluctuating"	-J623-
P240700	"EVAP emission control system leakage diagnosis pump current fluctuating"	-J623-

No other relevant event memory entries are typically logged in the engine control unit for this specific issue.

Technical Background

The root cause of the illuminated MIL and DTC P240700 is identified as overly sensitive On-Board Diagnostics (OBD). The vehicle's diagnostic system incorrectly interprets normal current fluctuations in the EVAP emission control system leakage diagnosis pump as a fault, leading to the Malfunction Indicator Lamp illumination.

Service Procedure

This condition is resolved by updating the software in the Engine Control Module, -J623- (address word 0001). This Technical Service Bulletin (TSB) 2071770/7 is the latest revision (Revision 7) and supersedes previous bulletins, including TSB Group 01 number 24-20 dated May 10, 2024, and the Pending Service Solution (PSS) TSB 2066675. The revision history indicates updates to the SVM table and added model years in earlier revisions (Revision 6 on May 10, 2024, added MY 2022 Q7; Revision 5 on March 29, 2024, added MY 2022 Q3).

To perform the software update, technicians must follow these steps:

1. Refer to TSB 2011732 for detailed operating instructions regarding Software Version Management (SVM).
2. Update the Engine Control Module, -J623- (address word 0001), using the appropriate SVM action code. The specific software part numbers and versions vary by model and model year:
   • 2022 Audi Q7 2.0l: Old Software Part Number 4M0.906.259.AE (Version 0001) is updated to New Software Part Number 4M0.906.259.AE (Version 0002 or higher).
   • 2022 Audi Q3: Old Software Part Number 83A.906.259.D (Version 0001) is updated to New Software Part Number 83A.906.259.D (Version 0002 or higher).
   • 2022 Audi Q5 PHEV: Old Software Part Number 80A.906.259.AA (Version 0001) is updated to New Software Part Number 80A.906.259.AA (Version 0002 or higher). The SVM Code Input for this model is 01A320.
   • 2023 Audi Q5 PHEV: Old Software Part Number 80A.906.259.AD (Version 0001) is updated to New Software Part Number 80A.906.259.AD (Version 0002 or higher).

This software update recalibrates the diagnostic sensitivity, preventing the false detection of an EVAP system fault and resolving the Audi Q7 MIL P240700 issue.

Required Tools and Parts

To perform this software update, technicians will need specific diagnostic equipment:

• VAS 6160/VAS 6150: A VAS tester running the current version of ODIS (Windows 10).

No parts replacement is typically required for this repair, as it is a software-only solution.

Warranty Information

This repair is covered under Audi's New Vehicle Limited Warranty for up to 48 months or 50,000 miles, whichever occurs first. For Certified Pre-Owned (CPO) vehicles, the claim type is G10, and ownership verification is required. The Service Number for this bulletin is 2048, and the Damage Code is 0040. Labor operations include:

• Software Update (Includes checking for DTCs): Labor operation 0151 0000, with time stated on the diagnostic protocol (maximum 50 Time Units, TU).
• Charge Battery: Labor operation 2706 8950, with time determined by the Service Repair Time (SRT) and associated operations.

Diagnostic time for GFF, road test prior to service, and road test after service are all 0 TU (no allowance). All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual, and the claim comment should reference TSB 2071770/7.

Important Warnings

If the vehicle is outside of any applicable warranty, this Technical Service Bulletin is informational only. In such cases, the cost of the software update may not be covered by Audi.

Additional Information

All part and service references provided in this TSB (2071770) are subject to change and/or removal. Technicians are advised to 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.

Source: NHTSA ID: 11002211, TSB 2071770/7