BMW top hifi amplifier fault codes
The 16 fault codes the top hifi amplifier can store, and what each one means. Some codes mean different things in different versions of the module; tap a code to see which applies to your car.
On: Z4 (E89)
- 023700 AMPH: Transport mode active
- 02FF37 DM test application
- B7F481 AMPH: No current coding data stored
- B7F482 AMPH: Coding data faulty
- B7F483 AMPH: Coding data not released
- B7F484 AMPH: Control module is not encoded for the vehicle
- B7F485 AMPH: Coding data implausible
- B7F490 AMPH: Internal control-module fault (software)
- B7F491 AMPH: Internal control-module fault (hardware)
- B7F492 Invalid coding data for equalizing
- B7F4A0 AMPH: Overtemperature
- B7F4E0 AMPH: Undervoltage
- B7F4E2 AMPH: Overvoltage
- D6C40B AMPH: K-CAN, line fault
- D6C414 AMPH: K-CAN, communication fault
- D6CBFF DM test communication
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