BMW fault code 0045
Stability control
In the stability control, code 0045 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.
Engine speed sensor rear right ABS valve outlet
Module versions: Stability control MK4 US (ASC4GUS), Stability control MK4 (ASCMK4G)
In: 3 Series (E36) 1990–2000
DMER2 message error
Module versions: Stability control DSC3 (DSC3), Stability control DSC5 (DSC5)
In: 5 Series (E39) 1995–1998, 7 Series (E38) 1994–1998
Valve exhaust / sensor rear right
Module version: Stability control MK20 (ABSMK20)
In: 3 Series (E36) 1990–2000
ASC: Wheel-speed-sensor position, rear right
Module version: Stability control MK20 (ASCMK20)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, X5 (E53) 1999–2004, Z8 (E52) 2000–2003
DSC: No message (DMER2) from DME/DDE control module
Module version: Stability control DSC57 (DSC57)
In: 3 Series (E46) 1998–2006, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2004, Z8 (E52) 2000–2003
DSC: Wheel-speed-sensor position, rear right
Module version: Stability Control MK20 (DSC_E46)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, X5 (E53) 1999–2004, Z8 (E52) 2000–2003
Reading and clearing it
Fault code 0045 is a BMW code, stored in the car's stability control, 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 stability control is on: 8 Series (E31), 7 Series (E32), 5 Series (E34), 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53)
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