BMW automatic heating/air conditioning fault codes

The 167 fault codes the automatic 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 (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)

  • 9C48 IHKA: Fresh air/recirculated air flap motor, left (and 9 other meanings)
  • 9C49 IHKA: Fresh air/recirculated air flap motor, right (and 7 other meanings)
  • 9C4A IHKA: Defrosting flap motor (and 7 other meanings)
  • 9C4B IHKA: Defrosting flap motor (and 6 other meanings)
  • 9C4C IHKA: Footwell flap motor, left (and 5 other meanings)
  • 9C4D IHKA: Cold-air-flap motor (and 6 other meanings)
  • 9C4E IHKA: Footwell-flap motor, left (and 7 other meanings)
  • 9C4F IHKA: Footwell-flap motor, right (and 2 other meanings)
  • 9C50 IHKA: Rear compartment stratification flap motor (and 5 other meanings)
  • 9C51 IHKA: Rear compartment ventilation flap motor, right (and 1 other meaning)
  • 9C52 IHKA: Ventilation flap motor (and 6 other meanings)
  • 9C53 IHKA: Electric auxiliary heater (and 6 other meanings)
  • 9C54 IHKA: AUC sensor (and 8 other meanings)
  • 9C55 IHKA: Fogging sensor (and 2 other meanings)
  • 9C56 IHKA: Footwell temperature sensor (and 7 other meanings)
  • 9C57 IHKA: Blower power stage (and 2 other meanings)
  • 9C58 IHKA: Interior temperature sensor (and 8 other meanings)
  • 9C59 IHKA: Temperature control knob, right (and 3 other meanings)
  • 9C5A IHKA: Fan control wheel (and 3 other meanings)
  • 9C5B IHKA: Interior-temperature sensor (and 3 other meanings)
  • 9C5C IHKA: Evaporator temperature sensor (and 3 other meanings)
  • 9C5D IHKA: Refrigerant-pressure-sensor supply (and 4 other meanings)
  • 9C5E IHKA: Refrigerant pressure sensor (and 3 other meanings)
  • 9C5F IHKA: Ventilation temperature sensor (and 7 other meanings)
  • 9C60 IHKA: Heat exchanger for heating system, sensor, right (and 4 other meanings)
  • 9C61 IHKA: Heat exchanger for heating system, sensor, left (and 10 other meanings)
  • 9C62 IHKA: Evaporator temperature sensor (and 6 other meanings)
  • 9C63 Slide gate switch (and 7 other meanings)
  • 9C64 IHKA: Ventilation temperature sensor (and 3 other meanings)
  • 9C65 IHKA: Current consumption, component supply (and 4 other meanings)
  • 9C66 IHKA: Internal control-module fault (and 4 other meanings)
  • 9C67 IHKA: Heat exchanger for heating system, sensor, left (and 3 other meanings)
  • 9C68 IHKA: Ventilation temperature sensor (and 4 other meanings)
  • 9C69 IHKA: Rear compartment stratification controller (and 4 other meanings)
  • 9C6A IHKA: Solar sensor, left (and 4 other meanings)
  • 9C6B IHKA: Solar sensor, right (and 4 other meanings)
  • 9C6C IHKA: AUC sensor supply monitoring (and 11 other meanings)
  • 9C6D IHKA: Solar sensor, supply monitoring (and 4 other meanings)
  • 9C6E IHKA: Solar sensor (and 7 other meanings)
  • 9C6F IHKA: Fogging sensor, supply monitoring (and 4 other meanings)
  • 9C70 IHKA: Heated rear window control (and 3 other meanings)
  • 9C71 IHKA: Monitor, LIN supply (and 3 other meanings)
  • 9C72 IHKA: Interior temperature sensor fan (and 2 other meanings)
  • 9C73 IHKA: Coding data area (and 2 other meanings)
  • 9C74 IHKA: Rear compartment air volume, left (and 1 other meaning)
  • 9C75 IHKA: Undervoltage or overvoltage (and 5 other meanings)
  • 9C76 IHKA: Auxiliary water pump (and 1 other meaning)
  • 9C77 IHKA: Auxiliary-water pump (and 2 other meanings)
  • 9C78 IHKA: Washer nozzle heating (and 2 other meanings)
  • 9C79 IHKA: Water valve, left (and 1 other meaning)
  • 9C7A IHKA: Water valve, right (and 2 other meanings)
  • 9C7B Interior blower fan (and 8 other meanings)
  • 9C7C IHKA: Refrigerant compressor check valve (and 3 other meanings)
  • 9C7D IHKA: Rear roller blind (and 2 other meanings)
  • 9C7E IHKA: Rear-window defroster control (and 3 other meanings)
  • 9C7F IHKA: Coding data area (and 3 other meanings)
  • 9C80 Driver reserve 3 (and 2 other meanings)
  • 9C81 KCAN: Heat flow engine (DME1) (and 2 other meanings)
  • 9C82 IHKA: Independent heating deactivation (insufficient fuel) (and 2 other meanings)
  • 9C83 IHKA: Internal fault (checksum) (and 2 other meanings)
  • 9C84 No message (distance traveled) from the instrument panel, receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 2 other meanings)
  • 9C85 No message (terminal status) from the Car Access System, receiver integrated automatic heating / air conditioning system, transmitter CAS (and 2 other meanings)
  • 9C86 Integrated automatic heating / air conditioning system: Heated rear window (and 2 other meanings)
  • 9C87 Integrated automatic heating / air conditioning system: Electric fan (and 2 other meanings)
  • 9C88 No message (relative time) from the instrument panel, receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 2 other meanings)
  • 9C89 IHKA: Independent heating, flame interruption (and 1 other meaning)
  • 9C8A IHKA: Fuel preheating, independent/auxiliary heater (and 1 other meaning)
  • 9C8B IHKA: LIN bus, independent/auxiliary heater (and 1 other meaning)
  • 9C8C IHKA: Independent auxiliary heater deactivated (and 1 other meaning)
  • 9C8D IHKA: Shut-off valve, fuel supply system, independent auxiliary heater (and 1 other meaning)
  • 9C8E IHKA: Controller, ventilation flap, left outer
  • 9C8F Power management intervention (and 2 other meanings)
  • 9C90 No message (engine running) from the DME, receiver IHKA, transmitter DME-DDE (and 8 other meanings)
  • 9C91 IHKA: Potentiometer, rear-compartment temperature, left
  • 9C92 No message (ambient temperature) from the instrument panel, receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 1 other meaning)
  • 9C93 No message (vehicle speed) from the Dynamic Stability Control, receiver IHKA, transmitter DSC (and 1 other meaning)
  • 9C94 No message (coolant temperature) from the DME, receiver IHKA, transmitter DME-DDE (and 1 other meaning)
  • 9C95 No message (engine speed) from the DME, receiver IHKA, transmitter DME-DDE (and 1 other meaning)
  • 9C96 No message (dimmer setting) from the light module, receiver integrated automatic heating / air conditioning system, transmitter LM (and 1 other meaning)
  • 9C97 IHKA: Front stratification adjuster (and 5 other meanings)
  • 9C98 No message from auxiliary heater, receiver IHKA, transmitter SHZH (and 1 other meaning)
  • 9C99 IHKA: Interior temperature sensor, fan
  • 9C9A IHKA: Check valve
  • 9C9B IHKA: Side window heater
  • 9C9C IHKA: Fogging sensor
  • 9C9D Driver reserve 1
  • 9C9E Driver reserve 2
  • 9C9F No message (heating current, engine), receiver IHKA, transmitter DME-DDE
  • 9CA0 Integrated automatic heating / air conditioning system: Rear compartment blower, left
  • 9CA1 Integrated automatic heating / air conditioning system: Rear compartment blower, right
  • 9CA2 Integrated automatic heating / air conditioning system: Supply, motor bus, blue
  • 9CA3 Integrated automatic heating / air conditioning system: Supply, motor bus, white
  • 9CA4 SH/SK not ON due to range
  • 9CA5 EEPROM checksum
  • 9CA6 No message (kilometer reading), receiver IHKA, transmitter KOMBI
  • 9CA7 IHKA: Transport mode active (and 4 other meanings)
  • 9CA8 EKK: switch-off, refrigerant shutoff valve fault, climate (and 2 other meanings)
  • 9CA9 EKK: Bus fault (and 2 other meanings)
  • 9CAA EKK: switch-off, refrigerant shutoff valve fault, cooling unit
  • 9CB0 IHKA: Heater plug, independent/auxiliary heater (and 1 other meaning)
  • 9CB1 EKK: overload current (and 2 other meanings)
  • 9CB2 IHKA: Auxiliary water pump, independent/auxiliary heater
  • 9CB3 IHKA: Switch over valve, independent/auxiliary heater (and 1 other meaning)
  • 9CB4 IHKA: Metering pump, independent/auxiliary heater (and 1 other meaning)
  • 9CB5 EKK: excess temperature at inverter (and 2 other meanings)
  • 9CB6 EKK: high-voltage supply, undervoltage or overvoltage (and 2 other meanings)
  • 9CB7 Integrated automatic heating / air conditioning system: Malfunction detected in auxiliary heater (and 1 other meaning)
  • 9CB8 EKK: switch-off, sensor fault (and 2 other meanings)
  • 9CB9 EKK: switch-off, inverter supply fault (and 2 other meanings)
  • 9CBA IHKA: Fuel preheating, independent/auxiliary heater (and 1 other meaning)
  • 9CBB IHKA: LIN bus, independent/auxiliary heater (and 1 other meaning)
  • 9CBC IHKA: Independent auxiliary heater deactivated (and 1 other meaning)
  • 9CBD IHKA: Independent heating, switchover valve
  • 9CBE DTC button (and 1 other meaning)
  • A608 Integrated automatic heating / air conditioning system: Heated rear window
  • A609 Integrated automatic heating / air conditioning system: Auxiliary fan
  • A60A No message (relative time), receiver integrated automatic heating / air conditioning system, transmitter instrument panel
  • A612 No message (engine running) from the DME, receiver IHKA, transmitter DME-DDE
  • A614 No message (ambient temperature), receiver IHKA, transmitter KOMBI
  • A615 No message (vehicle speed), receiver IHKA, transmitter DSC
  • A616 KCAN: coolant temperature (DME1)
  • A617 No message (engine speed), receiver IHKA, transmitter DME-DDE
  • A618 No message (dimmer setting), receiver integrated automatic heating / air conditioning system, transmitter LM
  • A619 No message (battery voltage), receiver IHKA, transmitter CAS/PM
  • A61A No message from auxiliary heater, receiver IHKA, transmitter SHZH
  • A647 IHKA: Transport mode active
  • E704 IHKA: K-CAN Wire fault (and 4 other meanings)
  • E705 Network management error (and 1 other meaning)
  • E706 IHKA: Heater - A/C systems, LIN bus fault (and 1 other meaning)
  • E707 IHKA: K-CAN Communication fault (and 3 other meanings)
  • E708 LIN bus fault
  • E714 Message error (terminal status, 0x130), receiver integrated automatic heating / air conditioning system, transmitter CAS (and 4 other meanings)
  • E715 Message error (ambient temperature, 0x2CA), receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 4 other meanings)
  • E716 Message (dim, 0x202) faulty, receiver IHKA, transmitter KOMBI (and 4 other meanings)
  • E717 Message (engine data, 0x1D0) faulty, receiver IHKA, transmitter DME-DDE (and 4 other meanings)
  • E718 Message (status of pressure, refrigerant circuit, 0x2D2) faulty, receiver IHKA, transmitter JBE (and 4 other meanings)
  • E719 Message error (kilometer reading/range, 0x330), receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 4 other meanings)
  • E71A Message (torque 3, 0xAA) faulty, receiver IHKA, transmitter DME-DDE (and 4 other meanings)
  • E71B Message (heating current, engine 0x1B6) faulty, receiver IHKA, transmitter DME-DDE (and 4 other meanings)
  • E71C Message (speed, 0x1A0) faulty, receiver IHKA, transmitter DSC (and 3 other meanings)
  • E71D Message error (status PDC, 0x24A), receiver integrated automatic heating / air conditioning system, transmitter PDC (and 3 other meanings)
  • E71E Message error (status BFS, 0x22A), receiver integrated automatic heating / air conditioning system, transmitter JBE (and 3 other meanings)
  • E71F Message error (status FAS, 0x232), receiver integrated automatic heating / air conditioning system, transmitter JBE (and 3 other meanings)
  • E720 Message (power management, consumer/load control, 0x3B3) faulty, receiver IHKA, transmitter DME-DDE (and 4 other meanings)
  • E721 Message error (status sensor automatic air recirculation control, 0x2D0), receiver integrated automatic heating / air conditioning system, transmitter JBE (and 2 other meanings)
  • E722 Message error (status radio-operated key, 0x23A), receiver integrated automatic heating / air conditioning system, transmitter CAS (and 2 other meanings)
  • E723 Message error (status condensation window glass front, 0x2D1), receiver integrated automatic heating / air conditioning system, transmitter roof function center (and 2 other meanings)
  • E724 Message error (status stratification rear passenger compartment, 0x2D3), receiver integrated automatic heating / air conditioning system, transmitter JBE (and 2 other meanings)
  • E725 Message error (vehicle identification number, 0x380), receiver integrated automatic heating / air conditioning system, transmitter CAS (and 2 other meanings)
  • E726 Message error (units, 0x2F7), receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 2 other meanings)
  • E727 Message error (LCD brightness, 0x2C0), receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 2 other meanings)
  • E728 Message error (relative time, 0x328), receiver integrated automatic heating / air conditioning system, transmitter instrument panel (and 2 other meanings)
  • E729 Message (status of HDC, 0x1AF) faulty, receiver IHKA, transmitter DSC (and 3 other meanings)
  • E72A Message error (status water valve, 0x3B5), receiver integrated automatic heating / air conditioning system, transmitter JBE (and 2 other meanings)
  • E72B Message (status of auxiliary water pump, 0x2CF) faulty, receiver IHKA, transmitter JBE (and 3 other meanings)
  • E72C Message error (crash, 0x1FE), receiver integrated automatic heating / air conditioning system, transmitter ACSM/MRS5 (and 2 other meanings)
  • E72D Message error (status valve air conditioning compressor, 2D6, (1E2 E87) ), receiver integrated automatic heating / air conditioning system, transmitter CCC/MASK/RAD2 (and 3 other meanings)
  • E72E Message (status of Automatic Start/Stop function, 0x308) faulty, receiver IHKA, transmitter DME-DDE (and 5 other meanings)
  • E72F Message error (status driving light, 0x314), receiver integrated automatic heating / air conditioning system, transmitter roof function center (and 3 other meanings)
  • E730 Message (status of heating, rear window, 0x2D5) faulty, receiver IHKA, transmitter JBE (and 1 other meaning)
  • E731 No message (electrical air conditioning compressor release, 0x29C), receiver IHKA, transmitter HIM
  • E732 No message (status of valve for high-voltage battery cooling, 0x389), receiver IHKA, transmitter HIM
  • E733 Message error (vehicle type, 0x388), receiver integrated automatic heating / air conditioning system, transmitter CAS (and 1 other meaning)
  • E734 No message (high-voltage battery status, 0x2B7), receiver IHKA, transmitter HIM (and 1 other meaning)
  • E735 No message (MSA, 0x308), receiver IHKA, transmitter DME/DDE
  • E736 No message (high-voltage accumulator 1 status, 0x1FA), receiver IHKA, transmitter HIM
  • E737 Message (after-running period, power supply, 0x3BE) faulty, receiver IHKA, transmitter CAS

Every BMW module's fault codes