BMW head-up display fault codes

The 39 fault codes the head-up display 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), X5 (E70), X6 (E71), X6 (E72)

  • A4E8 HUD: Head-up display button (and 1 other meaning)
  • A4E9 HUD: Voltage supply, projection light source
  • A4EA HUD: Projection light source
  • A4EB On-board network voltage, overvoltage or undervoltage (and 1 other meaning)
  • A4EC HUD: Temperature sensor, projection light source
  • A4ED internal photosensor (and 1 other meaning)
  • A4EE HUD: Internal fault
  • A4EF HUD: Manufacturer coding-data area (and 1 other meaning)
  • A4F0 HUD: Internal coding-data memory
  • A4F1 No message, receiver HUD (and 1 other meaning)
  • A4F2 Message error (terminal status, 0x130), receiver HUD, transmitter CAS
  • A4F3 Message (active cruise control, 0x190) faulty, receiver HUD, transmitter ACC (and 1 other meaning)
  • A4F4 Message (speed, 0x1A0) faulty, receiver HUD, transmitter DSC
  • A4F5 CAN: cluster status telegram failure / error (and 1 other meaning)
  • A4F6 Message (nominal road speed value, 0x200) faulty, receiver HUD, transmitter DME-DDE (and 1 other meaning)
  • A4F7 Message error (operation Head-Up Display, 0x210), receiver HUD, transmitter CCC/multi‐audio system controller (and 1 other meaning)
  • A4F8 Message error (unit of measurement, 0x2F7), receiver HUD, transmitter CCC/multi‐audio system controller (and 1 other meaning)
  • A4F9 Message error (driving light status, 0x314), receiver HUD, transmitter LM (and 1 other meaning)
  • A4FA Message error (trip odometer reading/range, 0x330), receiver HUD, transmitter instrument panel
  • A4FB CAN: Missing/Error telegram display control CC message
  • A4FC Message error (on-board computer status, 0x35C), receiver HUD, transmitter instrument panel (and 1 other meaning)
  • A4FD Message error (display instrument panel, 0x366), receiver HUD, transmitter instrument panel (and 1 other meaning)
  • A4FE HUD: K-CAN Line fault (and 1 other meaning)
  • A4FF HUD: K-CAN Communication fault (transmission failed) (and 1 other meaning)
  • A500 HUD: K-CAN Communication fault (no acknowledge) (and 1 other meaning)
  • A501 HUD: K-CAN Communication fault (bus off) (and 1 other meaning)
  • A502 HUD: K-CAN Communication fault (signal invalid) (and 1 other meaning)
  • A503 CAN: extended personalization telegram failure (and 1 other meaning)
  • A504 CAN: standard personalization telegram failure (and 1 other meaning)
  • A505 CAN: No answer to request (580h+3Dh)
  • A506 HUD: Transport mode active
  • A507 No message (M drive status, 0x399), receiver HUD, transmitter DME
  • D844 HUD: K-CAN Wire fault
  • D847 HUD: K-CAN Communication fault (bus off or dual ported RAM) (and 1 other meaning)
  • D84D Waking device failed 3 times to wake the network. (Error_WakeUp_Failed).
  • D84E Although Shutdown(Execute) was sent, the light did not turn off. (Error_Light_Not_Off). (and 1 other meaning)
  • D850 Ring break diagnosis was performed (Error_Ring_Diagnose). (and 1 other meaning)
  • D851 Long and/or frequent unlocks (Error_Unlock_Long). (and 1 other meaning)
  • D852 HUD: Deactivation, overtemperature

Every BMW module's fault codes