Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the...
Jeep technical service bulletin 0804122 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 0804122
- Component
- Electrical system: software
- Summary
- Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. Customers may experience the following:Active Noise Cancellation (ANC) drone noise at 950 between 1,000 RPM, during a start up.The AMP may set B221F-00 (Amplifier Internal) erroneously, it does not affect Active Noise Cancelation (ANC) performance. If B221F-00 is a stored fault update the AMP with appropriate software. If fault is active, follow normal DTC diagnostics.
Owners of these vehicles have filed 115 complaints in the electrical category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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