BMW telematic control unit (i bus) fault codes
The 45 fault codes the telematic control unit (i bus) 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: 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
- 0001 BIT: Wire, compensator, short circuit to ground (and 2 other meanings)
- 0002 BIT: Wire, compensator, short circuit to positive (and 2 other meanings)
- 0003 BIT: Terminal 15, short circuit to ground (and 2 other meanings)
- 0004 BIT: Terminal 15, short circuit to positive (and 2 other meanings)
- 0005 BIT: Charging lead, short circuit to ground (and 2 other meanings)
- 0006 BIT: Charging lead, short circuit to positive (and 2 other meanings)
- 0007 BIT: Activation wire DSP, short circuit to ground (and 2 other meanings)
- 0008 BIT: Activation wire DSP, short circuit to positive (and 2 other meanings)
- 0009 BIT: Radio muting, short circuit to positive (ON MUTE / KS Pin 4 to Ubatt) (and 2 other meanings)
- 000A BIT: Radio muting, short circuit to positive (OFF MUTE / KS Pin 4 to ground) (and 2 other meanings)
- 000B MOD config failure
- 000C NVM config failure
- 0010 General I-Bus error (and 1 other meaning)
- 0011 Battery state of charge
- 0012 GSM level (and 1 other meaning)
- 0032 ULF: Button, replacing / lifting, jammed
- 0068 TCU: GPS antenna, short circuit
- 0069 TCU: GPS antenna, open circuit
- 006A TCU: Control-unit-internal fault: GPS module
- 006B Communication with GPS module disturbed (and 1 other meaning)
- 006C TCU: Control-unit-internal fault: NAD
- 006D TCU: Emergency call button, open circuit
- 006E TCU: Emergency SOS call LED, open circuit
- 0070 TCU: Emergency SOS call button, short circuit to positive
- 0073 TCU: Control-unit-internal fault: memory
- 0074 TCU: Emergency SOS call button: button stuck or short circuit to ground
- 0079 TCU: Control-unit-internal fault: Bluetooth module
- 007A TCU: Transport mode active
- 007E Error with backup battery
- 007F TCU: Breakdown button, short circuit to positive
- 0080 TCU: Breakdown button, open circuit
- 0081 TCU: Breakdown button: button stuck or short circuit to ground
- 0090 Backup Antenna Disconnected
- 0091 TCU: GSM antenna fault (and 1 other meaning)
- 0097 TCU: Bluetooth button jammed
- 0098 TCU: Microphone, open circuit (and 1 other meaning)
- 00A0 Prefit SIM not present (and 2 other meanings)
- 00A1 Prefit SIM read error (and 2 other meanings)
- 00A2 Prefit SIM PIN locked (and 2 other meanings)
- 00A3 TCU: Bluetooth antenna, fault (and 1 other meaning)
- 00AA ULF: Internal fault: memory fault
- 00BB ULF: Internal fault: Bluetooth fault
- 00CC ULF: Microphone fault / audio fault
- 00EE ULF: Internal fault: memory fault (self-test)
- 00FF ULF: Internal fault: processor fault
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