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Mazda B108E

CENTER DISPLAY INTERNAL MALFUNCTION○ C0061:54 - DSC HU/CM○ C1001:92 - FORWARD SENSING CAMERA (FSC)○ C1001:97 - FORWARD SENSING CAMERA (FSC)○ U300A:62 - ELECTRIC PARKING BRAKE (EPB)

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Mazda dealer or qualified Mazda service provider, particularly if B108E:04 is present with other listed codes or if diagnostic communication is unavailable.
Confidence95%

Quick answer

Mazda DTC B108E:04 is identified in the verified bulletins as “Center Display Internal Malfunction.” Mazda service communications list it among codes that may occur when an aftermarket device connected at DLC-2 causes the female terminals to spread open.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does B108E mean?

Mazda DTC B108E:04 is identified in the verified bulletins as “Center Display Internal Malfunction.” Mazda service communications list it among codes that may occur when an aftermarket device connected at DLC-2 causes the female terminals to spread open.

2. Technical explanation

The verified evidence specifically identifies B108E:04, not B108E without the :04 suffix. Mazda/NHTSA manufacturer communications describe a condition in which an aftermarket device, including devices associated with insurance or mobile-phone companies, may cause poor DLC-2 connection by spreading DLC-2 female terminals. The communications list B108E:04 among possible resulting DTCs. They also state that the device may disrupt CAN-system battery-saver mode and may prevent IDS/MMDS communication with the vehicle due to poor DLC-2 connection.

3. What system is affected?

Center display. Verified bulletins also associate the DLC-2-related condition with CAN-system communication and diagnostic-tool communication.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • B108E:04 may be stored as a Center Display Internal Malfunction code.
  • IDS/MMDS may be unable to communicate with the vehicle due to poor DLC-2 connection.
  • Battery discharge may occur in the aftermarket-device condition described by Mazda.

6. Possible causes

  • A verified Mazda service-bulletin scenario is an aftermarket device connected at DLC-2 causing the DLC-2 female terminals to spread open.
  • The same verified scenario may result in a poor DLC-2 connection.
  • Other causes of B108E:04 are not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage repairs.
  • If an aftermarket device is connected to the DLC-2 diagnostic connector, have a Mazda dealer or qualified service provider inspect the vehicle in accordance with the applicable Mazda service communication.
  • Provide the complete DTC, including the suffix if available, and identify any aftermarket device connected to DLC-2.

10. Step-by-step troubleshooting

  1. Confirm whether the stored code is B108E:04; the verified bulletins specifically list that suffix.
  2. Document any aftermarket device connected to DLC-2, including insurance-company or mobile-phone-company equipment.
  3. Have a qualified service provider evaluate DLC-2 connection condition and diagnostic-tool communication using Mazda procedures. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Contact a Mazda dealer or qualified Mazda service provider, particularly if B108E:04 is present with other listed codes or if diagnostic communication is unavailable.

12. What the service center may check

  • Check for an aftermarket device connected at DLC-2.
  • Evaluate whether DLC-2 female terminals have been spread open and whether a poor DLC-2 connection is present, following Mazda service procedures.
  • Check whether IDS/MMDS can communicate with the vehicle.
  • Review related stored DTCs listed in the applicable Mazda communication.

13. Possible repair or resolution

  • The supplied verified evidence does not establish a specific repair or resolution.
  • Mazda service communications identify the DLC-2 aftermarket-device scenario for dealer diagnosis.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mazda SA-041-26, NHTSA Manufacturer Communication MC-11034447-0001, published June 19, 2026: identifies an aftermarket device as a possible cause of DLC-2 female terminals spreading open and lists B108E:04.
  • Mazda SA-061-25, NHTSA Manufacturer Communication MC-11026917-0001, published December 17, 2025: identifies the same DLC-2 aftermarket-device scenario and lists B108E:04.
  • Mazda SA-057-24, NHTSA Manufacturer Communication MC-11007019-0001, published August 15, 2024: identifies the same DLC-2 aftermarket-device scenario and lists B108E:04.
  • Mazda SA-032-23a, NHTSA Manufacturer Communication MC-10244679-0001, published October 11, 2023: identifies the same scenario, possible battery discharge, possible IDS/MMDS communication failure, and lists B108E:04.
  • Mazda SA-032-23, NHTSA Manufacturer Communication MC-10237216-0001, published May 24, 2023: identifies the same scenario, possible battery discharge, possible IDS/MMDS communication failure, and lists B108E:04.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Verified official sources are Mazda manufacturer communications published through NHTSA: https://static.nhtsa.gov/odi/tsbs/2026/MC-11034447-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2026/MC-11026917-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2024/MC-11007019-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2023/MC-10244679-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2023/MC-10237216-0001.pdf

19. Frequently asked questions

What does Mazda B108E:04 mean?

The verified Mazda communications identify B108E:04 as “Center Display Internal Malfunction.”

Can an aftermarket DLC-2 device be related to B108E:04?

Yes. The verified Mazda communications list B108E:04 among DTCs that may occur when an aftermarket device causes DLC-2 female terminals to spread open.

Is it safe to drive or charge with B108E:04?

Not yet established by verified evidence.

Is B108E without a suffix covered by the bulletins?

The supplied verified evidence specifically lists B108E:04. Applicability to B108E without the :04 suffix is not yet established by verified evidence.

20. Sources & verification

Verified
Mazda B108E: CENTER DISPLAY INTERNAL MALFUNCTION○ C0061:54 - DSC… | EV Diagnostics