BMW fault code 2B5C
Engine electronics
In the engine electronics, code 2B5C 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: Crankshaft sensor, signal
Module versions: Engine electronics (ME9N62_2), Engine electronics (N62_TUE), Engine electronics (N62_TUE2), Engine electronics, cylinder bank 1 (N73TU_R0)
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.
DME: Throttle valves fault status, bank 2
Module versions: Engine electronics (MS_S65), 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.
DME: Crankshaft sensor (CDKN Crankshaft sensor)
Module versions: Engine electronics (ME9N45), Engine electronics (MEV9N46), Engine electronics (MEV9N46L)
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.
DME: Air-mass sensor, plausibility
Module versions: Engine electronics (MED17_2), Engine electronics (MED17_2N)
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.
DME: Air-mass sensor, plausibility (mass air flow meter)
Module version: Engine electronics (MEV17_2N)
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.
Air-mass sensor, plausibility
Module version: Engine electronics (MV1722)
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 2B5C 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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