Dodge U1122
00 Lost Communication with Lin ECU 2, set in the BCM U1123-00 Lost Communication with Lin ECU 3, set in the BCM U113D-00 Lost Communication
Quick answer
For certain 2024–2026 Dodge Charger vehicles in the US, DTC U1122-00 is documented in an official manufacturer communication as “Lost Communication with LIN ECU 2, set in the BCM.” The communication also documents possible non-functioning front-passenger and/or rear-door switches. It identifies a related service bulletin, S2408000016 Revision E.
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 U1122 mean?
For certain 2024–2026 Dodge Charger vehicles in the US, DTC U1122-00 is documented in an official manufacturer communication as “Lost Communication with LIN ECU 2, set in the BCM.” The communication also documents possible non-functioning front-passenger and/or rear-door switches. It identifies a related service bulletin, S2408000016 Revision E.
2. Technical explanation
Verified evidence identifies U1122-00 as a loss-of-communication diagnostic trouble code involving LIN ECU 2, with the code set in the Body Control Module (BCM). The supplied official manufacturer-communication evidence also references U1123-00, Lost Communication with LIN ECU 3, set in the BCM, and U113D-00, Lost Communication; however, the supplied excerpt does not establish the full description for U113D-00.
3. What system is affected?
Body Control Module (BCM) communication with LIN ECU 2. The supplied evidence does not further identify the specific LIN ECU component.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Front-passenger switches may not function.
- Either one of the rear-door switches may not function.
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
- If the documented switch functions are inoperative, arrange diagnosis by an authorized Dodge service facility.
- Do not attempt high-voltage-system repair based on this communication code.
10. Step-by-step troubleshooting
- Have a qualified technician retrieve and evaluate stored DTCs, including U1122-00, using manufacturer diagnostic information.
- Verify whether the front-passenger and/or rear-door switches are non-functioning, as described in the manufacturer communication.
- Follow the applicable manufacturer service communication S2408000016 Revision E. Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Contact an authorized Dodge service facility if U1122-00 is present or if the documented front-passenger or rear-door switch concern occurs.
12. What the service center may check
- Confirm U1122-00 is set in the BCM.
- Check for the documented condition of non-functioning front-passenger and/or rear-door switches.
- Review and apply the procedures in manufacturer communication S2408000016 Revision E.
13. Possible repair or resolution
- Not yet established by verified evidence. The supplied evidence directs technicians to manufacturer communication S2408000016 Revision E but does not provide its repair procedure in the supplied excerpt.
14. Affected vehicles
- Dodge Charger · 2024–2026 · US
15. Related TSBs / service bulletins
- S2408000016 Revision E, published March 31, 2026: NHTSA Manufacturer Communication PDF 11031243. https://static.nhtsa.gov/odi/tsbs/2026/MC-11031243-0001.pdf
- S2408000016 Revision D, published March 4, 2026: NHTSA Manufacturer Communication PDF 11030040. https://static.nhtsa.gov/odi/tsbs/2026/MC-11030040-0001.pdf
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official NHTSA-hosted manufacturer communication evidence applies to Dodge Charger vehicles, model years 2024–2026, in the US. The provided evidence has a confidence value of 0.9500 and was last verified September 22, 2026.
19. Frequently asked questions
What does U1122-00 mean on the documented Dodge Charger application?
It means “Lost Communication with LIN ECU 2, set in the BCM,” according to the supplied official manufacturer-communication evidence.
What vehicles are covered by the supplied evidence?
Dodge Charger vehicles for model years 2024–2026 in the US.
What symptoms are documented?
The official communication documents that front-passenger and/or either rear-door switches may not function.
Is it safe to drive or charge with U1122-00?
Not yet established by verified evidence.
Is there an official service bulletin?
Yes. The supplied evidence identifies manufacturer communication S2408000016, including Revision E published March 31, 2026.