BMW fault code A6A1
Soft top module
In the soft top module, code A6A1 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.
CTM: Drive for hardtop locking
Module versions: Convertible top module (CTM_93_5), Soft top module (CTM_93_6)
In: 3 Series (E93) 2007–2013
Drive for hardtop locking
Module version: Soft top module (CTM_89)
In: Z4 (E89) 2009–2016
CVM: Relay for lowering rear window
Module version: Soft top module (CVM_64)
In: 6 Series (E64) 2004–2010
CVM: Relay PM2
Module version: Convertible top module (CVM_88_2)
In: 1 Series (E88) 2008–2013
Reading and clearing it
Fault code A6A1 is a BMW code, stored in the car's soft top 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 soft top module is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), X1 (E84), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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