Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the...
Jeep technical service bulletin 0804622 for 2022 Jeep Grand Wagoneer.
- Bulletin number
- 0804622
- Component
- Engine and engine cooling: engine: engine control module (ecu/ECM)
- Summary
- Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The customer may experience one or more of the following: Active Noise Cancellation (ANC) drone noise between 950 RPM and 1,000 RPM, during a start up. Battery draining. Blinking odometer. Upon further investigation the technician may find the following DTCs have been set: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 the fault is active, follow normal DTC diagnostics. Use inspection LOP (18-60-07-AF) to close the active RSU. B2204-00 - ECU Configuration Mismatch.
Owners of these vehicles have filed 9 complaints in the engine category.
Vehicles covered
- Jeep Grand Wagoneer 2022 2022
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