BMW heating/air conditioning fault codes
The 22 fault codes the heating/air conditioning can store, and what each one means. Some codes mean different things in different versions of the module; tap a code to see which applies to your car.
On: 5 Series (E34), 3 Series (E36), Z3 (E36/7)
- 0000 Blower potentiometer
- 0002 Stratification potentiometer
- 0003 Heat exchanger sensor right
- 0004 Heat exchanger sensor left
- 0005 Evaporator sensor
- 0006 Interior temperature sensor
- 0007 Outside temperature sensor
- 0008 Setpoint actuator right
- 0009 Setpoint actuator left
- 000C Auxiliary heating / Auxiliary ventilation
- 0012 Starter (Terminal 50).
- 0014 AUC
- 0019 Stratification flap motor
- 001A Fresh air door motor
- 001B Fresh air flap motor
- 001C Water valve right
- 001D Water valve left
- 0020 Interior blower fan
- 0023 DME / EML
- 0024 Rear window heating
- 0026 Magnetic clutch
- 0027 Auxiliary water pump
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