2021 Audi e-tron Charging Fault Service Action 93L9

Symptoms of the Audi e-tron Charging Fault

Owners of 2021 Audi e-tron vehicles may experience a specific Audi e-tron charging fault where the "high-performance charging procedure at public charging stations may sporadically be terminated." This means charging sessions might unexpectedly end, leaving the vehicle with an incomplete charge.

Additionally, owners might encounter problems with the charging port itself. The "charging flap can sometimes not be opened and/or the connector catch of the charging cable cannot be released." These issues indicate a problem with the high-voltage charging unit's software, affecting both charging functionality and physical access to the charging port.

Important Warnings and Owner Information

Audi has issued Service Action 93L9 to address the 2021 Audi e-tron charging fault. Owners should be aware of several critical points regarding this service action:

• Free of Charge Period: This service action is available free of charge only until September 01, 2026. If you choose to have this service performed after this date, your Audi dealer's normal repair costs will apply.
• Inventory Vehicles: Dealers are required to ensure that every affected inventory vehicle has this campaign completed before delivery to consumers. This prevents new owners from experiencing the issue immediately.
• Charging Settings Reset: The software update procedure may erase your customized charging settings. It is highly recommended to "Document the customer's charging settings prior to performing this procedure. Upon completion of this procedure, re-enter the customer's charging settings."
• Safety During Service: Technicians are warned that "Radiator Fan(s) may cycle ON high speed during the Update Process! There is a serious risk that personal injury may result if contact is made with spinning fan blades. Keep hands and all objects away from Radiator Fan(s) during Update Process!" This highlights the importance of having trained professionals perform the service.
• Diagnostic Connection: "Using Bluetooth or WiFi for this action is PROHIBITED! Damage caused to electronic components (e.g. ECM, TCM, etc.) during the SVM update process is not covered." The diagnostic interface MUST ONLY be connected via a USB cable.
• Battery Voltage: During the software update, the "Battery voltage must remain above 12.5 volts for the duration of the software update. Failure to do so may cause the update to fail, which could result in damage to the control module. Control modules damaged by insufficient voltage will not be covered."
• Screen Saver: The diagnostic tester's "screen saver and power saving settings are off. Failure to do so may result in the tester entering power save mode during the software update, which could result in damage to the control module."
• Tester Power: The VAS Diagnostic Tester must be plugged in using its supplied power adapters. "Under no circumstances should the tester be used on battery power alone during the software update. Failure to do so may result in the tester powering off during the update, which could result in damage to the control module."
• Flash Process: The update must be performed via "Audi Flashing" and "DO NOT USE Guided Fault Finding (GFF) to perform this flash. Using GFF will cause the flash to take longer. Requests for additional time will not be considered."
• ODIS Sessions: "All campaign software updates must be completed during a single, standalone ODIS Diagnostic Session." Also, any ODIS "Hot-Fix" patches must be removed before starting.
• Reimbursement: "Damages resulting from improper repair or failure to follow these work instructions are the dealer's responsibility and are not eligible for reimbursement under this action. Diagnosis and repair of pre-existing conditions in the vehicle are not covered under this action."

Dealer Claim Information

For authorized Audi dealers, the following details are provided for processing claims related to Service Action 93L9:

• Service Number: 93L9
• Damage Code: 0099
• Parts Vendor Code: 002
• Claim Type: Sold vehicle: 7 10, Unsold vehicle: 7 90
• Causal Indicator: Mark labor as causal
• Vehicle Wash/Loaner: Dealers are instructed to "Do not claim wash/loaner under this action."
• Criteria I.D.: 01

Labor Operations:

Labor Op	Time Units	Description
2706 89 50	10	Connect battery charger
9352 25 99	Time stated on diagnostic protocol	Update high-voltage charger control module
0150 00 00	Time stated on diagnostic protocol	Perform GFF test plan

Required Tools and Software

To perform this service action, technicians require specific equipment and software:

• Battery Tester/Charger: GRX3000VAS (or equivalent)
• Diagnostic Tester: VAS6150X / VAS6160X (or equivalent)
• Software: The ODIS software on the diagnostic tester must be completely up to date. The update targets software version 00C6 for the high-voltage battery charger.
• Technical Bulletin: Technicians should review Technical Bulletin 2011732 for Software Version Management (SVM) Operating Instructions.

Repair Procedure Summary

To resolve the 2021 Audi e-tron charging fault, an authorized Audi dealer will perform a software update to the high-voltage charging unit. The process involves several key steps to ensure a successful and safe update.

1. Vehicle Preparation: The technician first checks the VIN in the Elsa system to verify campaign eligibility, ensuring the campaign status shows "open." Any outstanding Safety Recalls must be completed before proceeding. The ODIS software on the diagnostic tester must be current.
2. Power Management: A battery charger, such as the GRX3000VAS, is connected in power supply mode to maintain battery voltage above 12.5 volts throughout the update. For vehicles with a Battery Monitoring Control Module -J367- or EFB Battery, the negative cable must connect to a chassis grounding lug, not directly to the battery's negative terminal.
3. Diagnostic Setup: The diagnostic tester (VAS6150X or VAS6160X) is plugged into its power adapters, and the VAS Diagnostics Interface is connected to the tester via a USB cable. Wireless connections are strictly prohibited. The tester's screen saver and power-saving settings are disabled.
4. Vehicle Configuration: The hood is opened, the ignition is switched on, the parking brake is applied, and all electrical consumers (headlights, heated seats, climate control) are switched off. Hazard lights are turned on to prevent the system from entering bus sleep mode during the update.
5. Software Update Execution: The ODIS program is started, and communication with the scan tool via USB is confirmed. From the ODIS home screen, the technician selects "Flash," then "No RO." They highlight "SVM – Code Input," select "Perform test," and enter the corrective action code 93L9A291. After selecting "Accept," the technician follows the on-screen prompts to initiate the flash process.

Post-Repair Steps and Notes

After the software update is complete, several crucial steps are taken to finalize the repair and ensure proper system function:

• Ignition Cycle: Upon receiving confirmation of a successful update, the ignition must be turned off for 60 seconds and then turned back on. This "extra ignition cycle step must be followed, otherwise faults stored during the update may not be cleared upon exiting the Flash program."
• Protocol Submission: The diagnostic protocol is then sent online by selecting "Send."
• Diagnostic Scan: The technician exits the flash session and performs a Guided Fault Finding (GFF) Diagnostic Scan of the vehicle. Under the "Test Plan" tab, the self-test "C6 – Reset charging timer and charging profiles to factory settings" is performed, followed by exiting GFF.
• Clearing Ghost Faults: "Certain 'ghost' faults may store in the '00C6 High-Voltage Battery Charger' control module after updating to software version 0079." For further information, technicians can reference TSB 2062631. To clear these, the vehicle is put into bus sleep mode by disconnecting the diagnostic tester, removing the key, and locking the vehicle with the remote for 5 minutes.
• Campaign Stamp: Finally, the repair order is stamped with either item# AUD4927ENG or AUD4927FRE to certify completion.

NHTSA ID: 10201553