BMW fault code 0013
Digital Sound Processor
In the digital sound processor, code 0013 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.
Undervoltage, radio on, during self-test detected
Module version: Digital Sound Processor (DSP2_R)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
Top-DSP: Undervoltage, radio on, during self-test detected
Module version: Digital Sound Processor (TOPDSP)
In: X3 (E83) 2003–2010, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008
Top-DSP2: Undervoltage, radio on, during self-test detected
Module version: Digital Sound Processor (TOPDSP2)
In: X3 (E83) 2003–2010, Z4 (E85) 2002–2008, Z4 (E86) 2006–2008
Reading and clearing it
Fault code 0013 is a BMW code, stored in the car's digital sound processor, 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 digital sound processor is on: 7 Series (E38), 5 Series (E39), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
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