BMW fault code 9644

Door satellite, front left

In the door satellite, front left, code 9644 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.

STVL: Self test: transmission error

Module version: Door satellite, front left (STVL)

In: 7 Series (E65) 2001–2008, 7 Series (E66) 2002–2008, 7 Series (E67) 2002–2008

TMFA: Self test: transmission error

Module version: Door module, driver (TEFA60)

In: 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010

Reading and clearing it

Fault code 9644 is a BMW code, stored in the car's door satellite, front left, 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 door satellite, front left is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67)

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