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

Audi has issued Technical Service Bulletin (TSB) 2071770/8 to address a specific issue affecting certain 2022-2023 Audi Q3, Q5, Q5 e quattro, Q5 Sportback, and Q7 models. This bulletin, dated August 27, 2024, supersedes previous revisions, including TSB Group 01 number 24-22 dated May 14, 2024, and the earlier Pending Service Solution (PSS) TSB 2066675.

The TSB details a condition where the Malfunction Indicator Lamp (MIL) illuminates, accompanied by a specific diagnostic trouble code (DTC).

Symptoms

Owners of affected Audi vehicles may notice the following symptom:

• The Malfunction Indicator Lamp (MIL) is illuminated on the dashboard.

Fault Codes / DTCs

When diagnosing the issue, technicians may find the following diagnostic trouble code stored in the Engine Control Module (-J623-, address word 0001):

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

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

Diagnosis / Trigger Conditions

The root cause of the illuminated MIL and the DTC P240700 is identified as overly sensitive OBD diagnostics. This sensitivity leads to the system incorrectly detecting a "EVAP emission control system leakage diagnosis pump current fluctuating" condition.

Important Warnings for High-Voltage Vehicles

For Audi Q5 PHEV and other models equipped with high-voltage components, a critical step must be followed during the repair process:

• The high-voltage cable must be removed BEFORE the entry of the SVM code. This prevents the high-voltage battery from charging during the software update. Charging the high-voltage battery during a software update can damage the high-voltage components.

Repair Procedure Summary

The resolution for the illuminated MIL and the Audi Q7 MIL P240700 fault involves a software update to the Engine Control Module (-J623-). This update addresses the overly sensitive OBD diagnostics.

Technicians are instructed to update the -J623- control unit using the Software Version Management (SVM) system. The specific SVM action code to be used is 01A320. The TSB provides a table detailing the old and new software part numbers and versions for various affected models and model years, ensuring the correct software is installed.

This procedure must follow all instructions outlined in TSB 2011732: 00 Software Version Management (SVM), operating instructions, especially regarding the proper use of the SVM system.

Required Tools

To perform this software update, technicians will require the following specialized tools:

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

Warranty Information

Warranty claims for this service must adhere to the Audi Warranty Policies and Procedures Manual. The Service Number for this operation is 2048, and the Damage Code is 0040. If the vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only, and the repair may not be covered.

Owner Action

If your 2022-2023 Audi Q3, Q5, or Q7 is displaying a Malfunction Indicator Lamp (MIL) and you suspect the Audi Q7 MIL P240700 issue, it is recommended to schedule an appointment with an authorized Audi dealership. The dealership will be able to diagnose the vehicle, confirm the presence of DTC P240700, and perform the necessary software update to the Engine Control Module.

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Source: NHTSA ID: 11007219