JEEP

0804622

2022-04-28 · NHTSA 10228047

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

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.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.