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Mazda B1041

ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE○ B108E:04 - CENTER DISPLAY INTERNAL MALFUNCTION○ C0061:54 - DSC HU/CM○ C1001:92 - FORWARD SENSING CAMERA (FSC)○ C1001:97 - FORWA

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Mazda dealer or qualified Mazda service provider, particularly if an aftermarket or third-party device has been connected to the DLC-2 connector or if diagnostic communication is unavailable.
Confidence95%

Quick answer

For certain U.S.-market Mazda CX-70, CX-90, and MX-30 vehicles in the supplied applicability records, B1041:54 is identified as an Adaptive Front Lighting System (AFS) Control Module DTC. Mazda service communications associate it with electrical devices connected to the DLC-2 diagnostic connector, which may disrupt communication or spread DLC-2 female terminals. The evidence does not establish a fault in the AFS module itself.

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 B1041 mean?

For certain U.S.-market Mazda CX-70, CX-90, and MX-30 vehicles in the supplied applicability records, B1041:54 is identified as an Adaptive Front Lighting System (AFS) Control Module DTC. Mazda service communications associate it with electrical devices connected to the DLC-2 diagnostic connector, which may disrupt communication or spread DLC-2 female terminals. The evidence does not establish a fault in the AFS module itself.

2. Technical explanation

Verified Mazda manufacturer communications submitted to NHTSA list B1041:54 as “ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE.” The communications state that some electrical devices connected to the DLC-2 connector by insurance or mobile-phone companies may cause battery discharge, may disrupt CAN-system battery-saver mode, may prevent IDS/MMDS communication because of a poor DLC-2 connection, and may spread DLC-2 female terminals. B1041:54 is listed among the DTCs that may be present in this situation. The supplied evidence does not establish the complete manufacturer definition of base code B1041 without the :54 suffix.

3. What system is affected?

Adaptive Front Lighting System (AFS) Control Module; the verified service-bulletin context also concerns the DLC-2 diagnostic connector and vehicle communication network.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • B1041:54 may be stored.
  • IDS/MMDS may not communicate with the vehicle when there is a poor DLC-2 connection.
  • Battery discharge may occur with some electrical devices connected to DLC-2.
  • The CAN-system battery-saver mode may be disrupted by some electrical devices connected to DLC-2.

6. Possible causes

  • An electrical device connected to the DLC-2 connector, including devices connected by insurance or mobile-phone companies.
  • A poor DLC-2 connection.
  • DLC-2 female terminals spread open by an aftermarket device.

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 assume that B1041:54 proves an AFS control-module failure.
  • If a non-factory device is connected to the DLC-2 connector, have a Mazda dealer or qualified service provider evaluate the vehicle using the applicable Mazda service information.
  • Use only appropriate diagnostic equipment and avoid forcing connectors into the DLC-2 port.

10. Step-by-step troubleshooting

  1. Check whether an electrical device has been connected to the DLC-2 connector; this is the condition identified in the verified Mazda communications.
  2. Have a qualified service provider assess DLC-2 connection condition and whether the female terminals have been spread open.
  3. Have the vehicle checked for communication issues with Mazda IDS/MMDS where applicable.
  4. Not yet established by verified evidence: a complete step-by-step diagnostic procedure, pin testing, module replacement criteria, or repair procedure for B1041:54.

11. When to contact service

Contact a Mazda dealer or qualified Mazda service provider, particularly if an aftermarket or third-party device has been connected to the DLC-2 connector or if diagnostic communication is unavailable.

12. What the service center may check

  • Determine whether a device from an insurance company, mobile-phone company, or another aftermarket source is connected to DLC-2.
  • Inspect the DLC-2 connection condition for poor connection or spread female terminals, following Mazda service procedures.
  • Attempt vehicle communication with IDS/MMDS as applicable.
  • Review all stored DTCs; the verified communications list B1041:54 with other potential DTCs in the same DLC-2-related context.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied communications identify a DLC-2/device-related condition but do not provide verified repair instructions or confirm a specific repair for B1041:54.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Mazda SA-032-23, NHTSA manufacturer communication MC-10237216, published May 24, 2023: identifies devices connected to DLC-2 as a possible source of battery discharge, CAN battery-saver disruption, poor diagnostic communication, spread DLC-2 terminals, and listed DTCs including B1041:54. https://static.nhtsa.gov/odi/tsbs/2023/MC-10237216-0001.pdf
  • Mazda SA-032-23a, NHTSA manufacturer communication MC-10244679, published October 11, 2023: same verified DLC-2/device-related context and includes B1041:54. https://static.nhtsa.gov/odi/tsbs/2023/MC-10244679-0001.pdf
  • Mazda SA-057-24, NHTSA manufacturer communication MC-11007019, published August 15, 2024: includes B1041:54 in the verified DLC-2 connection/device-related context. https://static.nhtsa.gov/odi/tsbs/2024/MC-11007019-0001.pdf
  • Mazda SA-061-25, NHTSA manufacturer communication MC-11026917, published December 17, 2025: includes B1041:54 in the verified DLC-2 connection/device-related context. https://static.nhtsa.gov/odi/tsbs/2026/MC-11026917-0001.pdf
  • Mazda SA-041-26, NHTSA manufacturer communication MC-11034447, published June 19, 2026: includes B1041:54 in the verified DLC-2 connection/device-related context. https://static.nhtsa.gov/odi/tsbs/2026/MC-11034447-0001.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official sources are Mazda manufacturer communications submitted to NHTSA. The supplied applicability records identify U.S.-market Mazda CX-70 model years 2022–2026, CX-90 model years 2022–2026, and MX-30 model years 2022–2026, with overlapping year ranges in the source data. Exact applicability for a specific vehicle is not yet established by verified evidence and should be confirmed by VIN with Mazda.

19. Frequently asked questions

What does B1041:54 mean in the supplied Mazda evidence?

It is listed as “ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE.” The evidence does not establish a fuller fault definition for B1041:54.

Does B1041:54 confirm that the AFS control module has failed?

No. The verified communications list B1041:54 in a DLC-2 device/connection-related context and do not establish AFS control-module failure.

Can an aftermarket DLC-2 device be relevant?

Yes. The verified Mazda communications state that some devices connected to DLC-2 may cause battery discharge, disrupt CAN battery-saver mode, cause poor diagnostic communication, and spread DLC-2 female terminals.

Is it safe to drive or charge with B1041:54?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mazda B1041: ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE○… | EV Diagnostics