BMW fault code 0029

Lights Module

In the lights module, code 0029 means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.

Reserve Block 4

Module versions: Light/Check Module II (LCM_II), Light/Check Module III (LCM_III), Light/Check Module IV (LCM_IV)

In: 3 Series (E46) 1998–2006, 5 Series (E39) 1995–2003, 7 Series (E38) 1995–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

Error ?????, Block 4

Module versions: Light/Check Module (LCM), Light/Check Module A (LCM_A)

In: 3 Series (E46) 1998–2006, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

LM: Signal, sensor SMC right faulty

Module version: Lights Module (LM2_83)

In: X3 (E83) 2003–2010, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008

LSZ: Terminal 15 missing

Module version: Lights switching center (LSZ)

In: 3 Series (E46) 1998–2006, X5 (E53) 1999–2006, Z8 (E52) 2000–2003

LSZ2: Terminal 15 missing

Module version: Light switching center 2 (LSZ_2)

In: 3 Series (E46) 1998–2006, X3 (E83) 2003–2010, X5 (E53) 1999–2006, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008, Z8 (E52) 2000–2003

Reading and clearing it

Fault code 0029 is a BMW code, stored in the car's lights module, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.

The lights module is on: 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)

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