Jeep B1A12
00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH)
Quick answer
B1A12-00 is identified in an official Jeep manufacturer communication as an active diagnostic trouble code in the Radio Frequency Hub (RFH). The same communication also addresses B1A10-00, B1A11-00, B1A13-00, B1A14-00, B1A15-00, B1A16-00, and B1A17-00.
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 B1A12 mean?
B1A12-00 is identified in an official Jeep manufacturer communication as an active diagnostic trouble code in the Radio Frequency Hub (RFH). The same communication also addresses B1A10-00, B1A11-00, B1A13-00, B1A14-00, B1A15-00, B1A16-00, and B1A17-00.
2. Technical explanation
Verified evidence establishes that B1A12-00 can be an active DTC in the Radio Frequency Hub (RFH). The supplied evidence does not establish the specific fault definition, root cause, diagnostic procedure, repair procedure, or whether the code is currently active on a particular vehicle.
3. What system is affected?
Radio Frequency Hub (RFH).
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- 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
- Record the exact DTC and suffix as reported by the vehicle or scan tool.
- Arrange diagnosis by an authorized Jeep service facility or qualified technician if the DTC is active.
- Do not attempt high-voltage-system repairs based on this code; no high-voltage involvement is established by the verified evidence.
10. Step-by-step troubleshooting
- Verify whether B1A12-00 is active in the Radio Frequency Hub (RFH).
- Check the applicable Jeep manufacturer communication S2608000010 through official service resources. Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Service need is not yet established by verified evidence. If B1A12-00 is active, an authorized Jeep service facility can determine applicability of the official manufacturer communication and perform the appropriate diagnosis.
12. What the service center may check
- Confirm active DTC B1A12-00 status in the RFH.
- Review manufacturer communication S2608000010 for the applicable vehicle. Additional service checks are not established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Jeep Grand Cherokee · 2021–2026 · US
- Jeep Wagoneer · 2021–2026 · US
- Jeep Wrangler · 2021–2026 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 11030042, document S2608000010, published March 5, 2026. It addresses active RFH DTCs B1A10-00, B1A11-00, B1A12-00, B1A13-00, B1A14-00, B1A15-00, B1A16-00, and B1A17-00.
- Applicability supplied with this diagnostic: 2021–2026 Jeep Grand Cherokee, Wagoneer, and Wrangler in the United States. Vehicle-specific applicability should be confirmed by service personnel.
16. Recall information
- No recall information was supplied in the verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication 11030042, S2608000010, published March 5, 2026: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11030042
19. Frequently asked questions
What does Jeep code B1A12-00 indicate?
Verified evidence identifies B1A12-00 as an active DTC in the Radio Frequency Hub (RFH). A more specific code definition is not yet established by the supplied verified evidence.
Which vehicles may be covered by the supplied evidence?
The supplied applicability data lists U.S.-market 2021–2026 Jeep Grand Cherokee, Wagoneer, and Wrangler vehicles. Exact vehicle applicability is not established without vehicle-specific confirmation.
Is B1A12-00 safe to drive or charge with?
Driveability and charging safety are not yet established by verified evidence.
Is there an official Jeep communication for this code?
Yes. NHTSA Manufacturer Communication 11030042, document S2608000010, addresses active RFH DTC B1A12-00 along with related RFH codes.