BMW fault code 001D
Engine electronics
In the engine electronics, code 001D 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.
Idle actuator
Module versions: Motor Electronics (DM172K20), Engine module (DM17_2R1)
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.
Idle actuator / opening winding
Module versions: Motor Electronics (DM331K20), Engine module (DM33M301)
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.
Speed signal
Module versions: DME13_4, DME13_6
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.
Idle actuator opening winding
Module version: Motor Electronics (DM173K20)
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: Idle controller / opening coil
Module version: Motor Electronics (DM33S501)
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.
Ignition cylinder 2
Module version: Motor Electronics (MS401K20)
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 001D 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 (E30), 8 Series (E31), 7 Series (E32), 5 Series (E34), 3 Series (E36), Z3 (E36/7)
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