Dodge B143B
ANC Microphone 1 - Circuit Short To Ground. B143B-13 - ANC Microphone 1 - Circuit Open. B143C-11 - ANC Microphone 2 - Circuit Short To Ground. B143C-13 - ANC Microphone 2 - Circuit
Quick answer
B143B is listed by Dodge as an Active Noise Cancellation (ANC) Microphone 1 circuit fault. Verified evidence also associates this communication with a 2026 Dodge Charger in the US. The supplied source indicates an amplifier component can set this code as stored.
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 B143B mean?
B143B is listed by Dodge as an Active Noise Cancellation (ANC) Microphone 1 circuit fault. Verified evidence also associates this communication with a 2026 Dodge Charger in the US. The supplied source indicates an amplifier component can set this code as stored.
2. Technical explanation
The verified manufacturer communication identifies these ANC microphone diagnostic trouble codes: B143B-11, ANC Microphone 1 circuit short to ground; B143B-13, ANC Microphone 1 circuit open; B143C-11, ANC Microphone 2 circuit short to ground; and B143C-13, ANC Microphone 2 circuit open. The supplied diagnostic title/meaning is truncated after the B143C descriptions, so no additional interpretation is established by the available evidence.
3. What system is affected?
Active Noise Cancellation (ANC) microphone system. The supplied official communication specifically references an amplifier component in connection with stored ANC microphone DTCs.
4. How serious is this code?
Unknown. The verified evidence does not provide a severity classification.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- The official manufacturer communication states that an amplifier component has the potential to set the listed ANC microphone DTCs as stored.
- No other causes are established by the supplied verified evidence.
7. Can I still drive the vehicle?
Unknown. The supplied verified evidence does not state whether the vehicle is safe to drive with B143B.
8. Can I charge the vehicle?
Unknown. The supplied verified evidence does not state whether charging is affected or permitted with B143B.
9. What you can safely do
- Record the complete code, including its suffix if shown (for example, B143B-11 or B143B-13).
- Have a Dodge service provider evaluate the vehicle using the applicable manufacturer information.
- Do not attempt high-voltage repairs. High-voltage involvement is not established by the supplied evidence.
10. Step-by-step troubleshooting
- Confirm the exact stored ANC microphone DTC and suffix.
- Consult the Dodge manufacturer communication identified as NHTSA Manufacturer Communication PDF 11028249, document S268A000001.
- Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Contact a Dodge dealer or qualified Dodge service provider for diagnosis, particularly because the official communication identifies an amplifier component as capable of setting these stored ANC microphone codes.
12. What the service center may check
- Verify the stored code and suffix: B143B-11 or B143B-13 for ANC Microphone 1, or B143C-11 or B143C-13 for ANC Microphone 2.
- Review Dodge communication S268A000001 / NHTSA manufacturer communication PDF 11028249.
- Evaluate the amplifier component in accordance with applicable Dodge service information. Specific test procedures are not provided in the supplied evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Dodge Charger · 2026 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 11028249, Dodge document S268A000001, published January 30, 2026. The supplied evidence states that an amplifier component can set the listed ANC microphone DTCs as stored.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 11028249, Dodge S268A000001, published January 30, 2026: https://static.nhtsa.gov/odi/tsbs/2026/MC-11028249-0001.pdf
19. Frequently asked questions
What does B143B mean?
The supplied verified diagnostic data identifies B143B as an ANC Microphone 1 circuit fault. B143B-11 is described as a circuit short to ground, and B143B-13 as a circuit open.
Which vehicle is covered by the supplied evidence?
The supplied applicability data identifies the 2026 Dodge Charger in the US.
Is B143B caused by the amplifier?
The official communication states that an amplifier component has the potential to set the listed ANC microphone DTCs as stored. It does not establish that the amplifier is the cause in every vehicle.
Can I drive or charge with B143B?
Not yet established by verified evidence.