Dodge B3A11
A/C Refrigerant Expansion Valve Actuator Control Circuit Performance. Possible causes: • CEXV mechanical fault (unable to reach positio
Quick answer
DTC B3A11-00 indicates A/C Refrigerant Expansion Valve Actuator Control Circuit Performance for the Chiller Electronic Expansion Valve (CEXV). Verified evidence identifies a CEXV mechanical fault, including inability to reach position, as a possible cause.
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 B3A11 mean?
DTC B3A11-00 indicates A/C Refrigerant Expansion Valve Actuator Control Circuit Performance for the Chiller Electronic Expansion Valve (CEXV). Verified evidence identifies a CEXV mechanical fault, including inability to reach position, as a possible cause.
2. Technical explanation
For applicable 2024–2025 Dodge Charger vehicles in the US, NHTSA manufacturer communication S2524000013 identifies B3A11-00 as a Chiller Electronic Expansion Valve (CEXV) performance DTC: “A/C Refrigerant Expansion Valve Actuator Control Circuit Performance.” The supplied evidence states that EXV performance DTCs can be triggered and lists a CEXV mechanical fault, including inability to reach position, as a possible cause. The supplied excerpt is truncated, so other causes, diagnostic criteria, and repair steps are not yet established by verified evidence.
3. What system is affected?
A/C refrigerant expansion valve / Chiller Electronic Expansion Valve (CEXV) control system.
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
- CEXV mechanical fault, including inability to reach position.
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
- Arrange diagnosis by an authorized Dodge service facility or qualified technician.
- Do not attempt high-voltage-system repairs based on this code.
10. Step-by-step troubleshooting
- Have the vehicle checked using the applicable manufacturer diagnostic information and current software. Further troubleshooting steps are not yet established by verified evidence.
11. When to contact service
Service is appropriate because this is an A/C refrigerant expansion valve actuator/control performance DTC. The supplied evidence does not establish urgency, drivability, or charging restrictions.
12. What the service center may check
- Confirm the presence and status of B3A11-00.
- Assess Chiller Electronic Expansion Valve (CEXV) operation and whether it can reach its commanded position.
- Use the applicable manufacturer diagnostic information and most recent software. Detailed test procedures are not yet established by verified evidence.
13. Possible repair or resolution
- Repair or resolution is not yet established by verified evidence. The cited communication identifies CEXV mechanical inability to reach position as a possible cause, but the supplied excerpt does not provide a confirmed repair procedure.
14. Affected vehicles
- Dodge Charger · 2024–2025 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 11025029: S2524000013, published October 29, 2025. It identifies B3A11-00 as a CEXV performance DTC and notes that EXV performance DTCs can be triggered for listed reasons, including a CEXV mechanical fault unable to reach position.
16. Recall information
No recall relationship is established by verified evidence.
17. Official manufacturer information
Verified source: NHTSA Manufacturer Communication PDF 11025029, S2524000013: https://static.nhtsa.gov/odi/tsbs/2025/MC-11025029-0001.pdf. Applicability supplied: 2024–2025 Dodge Charger, US.
19. Frequently asked questions
What does Dodge code B3A11-00 mean?
It means “A/C Refrigerant Expansion Valve Actuator Control Circuit Performance” for the Chiller Electronic Expansion Valve (CEXV), according to the supplied NHTSA manufacturer communication.
What can cause B3A11-00?
The verified evidence lists a CEXV mechanical fault, including inability to reach position, as a possible cause. Other causes are not yet established by verified evidence.
Can I drive or charge with B3A11-00?
Driving and charging safety are not yet established by verified evidence.