BMW fault code A370
Telematics control unit
In the telematics control unit, code A370 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.
Error_DSP_Failure.
Module versions: Universal charging and hands-free system (ULF_60), Universal charging and hands-free system (ULF_60PB)
Which BMWs have these versions depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
TCU: Emergency call button, short circuit to B+
Module version: Telematics control unit (TELE60_2)
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.
TCU: Emergency SOS call button, short circuit to positive
Module version: Telematics control unit (TELE60_3)
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.
ULF-SBX: Control-unit-internal fault: processor faulty
Module version: Interface box (ULF2_60)
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.
Reading and clearing it
Fault code A370 is a BMW code, stored in the car's telematics control unit, 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 telematics control unit is on: 5 Series (E60), 5 Series (E61), 6 Series (E63), 6 Series (E64), 7 Series (E65), 7 Series (E66), 7 Series (E67), X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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