BMW interface box high fault codes
The 13 fault codes the interface box high 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), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
- A9A8 ULF-SBX-H: Control-unit-internal fault: memory faulty
- A9A9 ULF-SBX-H: Hands-free button jammed
- A9AA ULF-SBX-H: Control-unit-internal fault: Bluetooth initialization failed
- A9AB ULF-SBX-H: Bluetooth antenna not connected or faulty
- A9AC ULF-SBX-H: overvoltage
- A9AD overtemperature at FOT detected (Error_FOT_Temperature_Fault)
- A9AE ULF-SBX-H: Control-unit-internal fault: self-test failed
- A9AF ULF-SBX-H: Control-unit-internal fault: processor faulty
- DE4D MOST bus could not be woken up (Error_Wakeup_Failed)
- DE4E Although Shutdown (Execute) was sent, the light did not go out (Error_Light_Not_OFF)
- DE50 Ring break diagnosis was performed (Error_Ring_Diagnose)
- DE51 Long and/or frequent unlocks (Error_Unlock_Long)
- DE52 ULF-SBX-H: Deactivation, overtemperature
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