BMW fault code 27DC
Engine electronics
In the engine electronics, code 27DC 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.
DME: EWS3.3 random code storage
Module versions: Engine electronics (ME9E65_6), Engine electronics (ME9K_NG4), Engine electronics (ME9N62)
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.
Accelerator pedal module, pedal-travel sensor 2, electrical: Short circuit to ground
Module versions: Engine electronics (MEVD174K), Engine electronics (MEVD176K), Engine electronics (MEVD17KW)
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.
INDEX_204_INJ
Module versions: Engine electronics (MS_S65_2), Engine electronics (MS_S65_3), Engine electronics (MSS60)
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.
Pedal sensor position/brake pedal position: compatibility, output limit
Module version: Engine electronics (EDME82)
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.
CDKWCA - EWS3.3 interchange code storage
Module version: Engine electronics (MEV9N46)
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.
DME: EWS 3.3 random-code storage
Module version: Engine electronics (MS450DS0)
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.
Accelerator pedal module, pedal sensor 2, electrical: Short circuit to ground
Module version: Engine electronics (MVD1722)
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.
DME: EWS3.3 random-code storage, bank 1
Module version: Engine electronics, cylinder bank 1 (N73_R0)
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 27DC is a BMW code, stored in the car's engine electronics, 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 engine electronics is on: 3 Series (E46), Z8 (E52), X5 (E53), 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), X3 (E83), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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