BMW fault code A690
Soft top module
In the soft top module, code A690 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.
Microswitch, rear-end module closed, left
Module version: Soft top module (CTM_89)
In: Z4 (E89) 2009–2016
CTM: Hall sensor, rear-end module closed
Module version: Convertible top module (CTM_93_5)
In: 3 Series (E93) 2007–2013
CTM: Hall sensor 'rear module closed'
Module version: Soft top module (CTM_93_6)
In: 3 Series (E93) 2007–2013
CVM: Sensor for main pillar
Module version: Soft top module (CVM_64)
In: 6 Series (E64) 2004–2010
CVM: Hall sensor, main pillar stowed
Module version: Convertible top module (CVM_88_2)
In: 1 Series (E88) 2008–2013
Reading and clearing it
Fault code A690 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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