BMW fault code A839
Gear selector switch
In the gear selector switch, code A839 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.
GWS: Play protection resetting system active
Module version: Gear selector switch (GWS_60)
In: 1 Series (E82) 2007–2013, 1 Series (E88) 2008–2013, 3 Series (E90) 2005–2012, 3 Series (E92) 2006–2013, 3 Series (E93) 2007–2013, 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010, Z4 (E89) 2009–2016
GWS: Childproof lock reset system active
Module version: Gear selector switch (GWS_60_2)
In: 1 Series (E82) 2007–2013, 1 Series (E88) 2008–2013, 3 Series (E90) 2005–2012, 3 Series (E92) 2006–2013, 3 Series (E93) 2007–2013, 5 Series (E60) 2003–2010, 5 Series (E61) 2004–2010, 6 Series (E63) 2003–2010, 6 Series (E64) 2004–2010, Z4 (E89) 2009–2016
GWS: Control module: internal fault
Module version: Gear selector switch (GWS_70)
In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
GWS: Control module: internal fault (read EEPROM)
Module version: Gear selector switch (GWS_90)
In: 1 Series (E82) 2007–2013, 1 Series (E88) 2008–2013, 3 Series (E90) 2005–2012, 3 Series (E92) 2006–2013, 3 Series (E93) 2007–2013, Z4 (E89) 2009–2016
Reading and clearing it
Fault code A839 is a BMW code, stored in the car's gear selector switch, 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 gear selector switch is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), X5 (E70), X6 (E71), X6 (E72), 1 Series (E82), X1 (E84), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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