BMW headphones interface fault codes
The 7 fault codes the headphones interface 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: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72)
- A1C8 KHI: Control-module fault (DSP defective)
- A1C9 KHI: Control-module fault (output stages IC defective)
- D78D Waking device failed 3 times to wake the network. (Error_WakeUp_Failed).
- D78E Although Shutdown (Execute) was sent, the light did not go out. (Error_Light_Not_OFF).
- D790 Ring break diagnosis was performed (Error_Ring_Diagnose).
- D791 Long and/or frequent unlocks (Error_Unlock_Long).
- D792 KHI: Deactivation, overtemperature
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