Acura P16F4
in-screen. B223 Short Range Radar Sensor • Detec
Quick answer
For a 2024 Acura ZDX in the U.S., DTC P16F4 is referenced in Acura Service Bulletin B25-044. The verified bulletin summary associates it with a Service Transmission message on the meter and a sudden drop in displayed range in the peek-in screen.
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 P16F4 mean?
For a 2024 Acura ZDX in the U.S., DTC P16F4 is referenced in Acura Service Bulletin B25-044. The verified bulletin summary associates it with a Service Transmission message on the meter and a sudden drop in displayed range in the peek-in screen.
2. Technical explanation
The supplied official NHTSA manufacturer communication identifies P16F4 in connection with Service Bulletin B25-044 and states that the issue was previously addressed by Service Bulletin 25-022, titled “Service High Voltage Message B2BAA. K16A Battery Energy Control Module 1.” The verified summary does not provide a complete diagnostic definition, failure mechanism, or repair procedure for P16F4.
3. What system is affected?
Verified evidence references the Battery Energy Control Module 1 (K16A) and a Service Transmission message. The diagnostic record’s supplied title also references “B223 Short Range Radar Sensor,” but its full meaning is truncated; its relationship to the reported condition is not yet established by verified evidence.
4. How serious is this code?
Unknown. The supplied evidence does not assign a severity level.
5. Symptoms you may notice
- Service Transmission message shown on the meter.
- Sudden drop in range shown in the peek-in screen.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Unknown. The supplied evidence does not establish whether the vehicle can be driven with P16F4.
8. Can I charge the vehicle?
Unknown. The supplied evidence does not establish whether the vehicle can be charged with P16F4.
9. What you can safely do
- Record any meter messages and the range display behavior.
- Arrange diagnosis by an Acura dealer or qualified service facility using the applicable Acura service information.
- Do not attempt high-voltage battery or battery-control-module repairs yourself.
10. Step-by-step troubleshooting
- Have a service facility confirm P16F4 and review Acura Service Bulletin B25-044 and the previously referenced Service Bulletin 25-022.
- No further troubleshooting procedure is established by the supplied verified evidence.
11. When to contact service
Contact an Acura dealer or qualified service facility. Provide DTC P16F4, the model year and vehicle identification number, and any Service Transmission message or sudden range-display change observed.
12. What the service center may check
- Confirm whether the vehicle is a 2024 Acura ZDX for the U.S. market.
- Confirm DTC P16F4 and inspect applicable manufacturer service information.
- Review Service Bulletin B25-044 and its reference to Service Bulletin 25-022.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Acura ZDX · 2024 · US
15. Related TSBs / service bulletins
- Acura Service Bulletin B25-044, published through NHTSA Manufacturer Communication PDF 11024256 on 2025-10-04. Its verified summary states that P16F4 was previously addressed by Service Bulletin 25-022.
- Acura Service Bulletin 25-022: “Service High Voltage Message B2BAA. K16A Battery Energy Control Module 1,” as referenced by B25-044.
16. Recall information
- No recall information was supplied in the verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 11024256, Acura Service Bulletin B25-044: https://static.nhtsa.gov/odi/tsbs/2025/MC-11024256-0001.pdf
19. Frequently asked questions
Which vehicles are covered by the supplied evidence?
The verified applicability record identifies the 2024 Acura ZDX in the U.S. market.
What symptoms are associated with P16F4 in the supplied bulletin summary?
The summary identifies a Service Transmission message on the meter and a sudden drop in range in the peek-in screen.
Does the evidence say that P16F4 makes the vehicle unsafe to drive or charge?
No. Driveability and charging safety are not established by the supplied verified evidence.
Is there an official bulletin for this code?
Yes. The supplied NHTSA communication identifies Acura Service Bulletin B25-044 and states that the matter was previously addressed by Service Bulletin 25-022.