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Volkswagen TSB #V011338 2034844
2013 Volkswagen Jetta Hybrid
TSB Document:
Affected Component: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- Summary
- Technical Bulletin (Update Programming for Sporadic Misfire Faults): During normal operation of the Jetta Hybrid, the electric drive motor will be activated as a generator to charge the High Voltage Battery. Once the High Voltage battery has reached a 100% state of charge, the regenerative function will shut off and the electric drive motor load will be released. Under certain driving conditions, this release of load from the engine can result in sporadic misfire faults storing in the Engine Control Module fault memory. This software update is designed to re-program the ECM, Power Electronics Module, and/or Battery Management Control Module with new software. The re-programming itself should carry out the updates without technician intervention. Please ensure all control module software as applicable has been updated after the flash is completed. The production solution for this issue was improved software implemented into production.
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