BYD P1A2300
BIC4 temperature sampling abnormal
Quick answer
DTC P1A2300 on applicable BYD vehicles means: “BIC4 temperature sampling abnormal.”
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 P1A2300 mean?
DTC P1A2300 on applicable BYD vehicles means: “BIC4 temperature sampling abnormal.”
2. Technical explanation
Verified evidence identifies P1A2300 as an HV-battery-system diagnostic trouble code for an abnormal BIC4 temperature-sampling condition. The supplied evidence does not define BIC4 further, identify the failed component, or provide a diagnostic or repair procedure.
3. What system is affected?
HV battery
4. How serious is this code?
Unknown. Severity is not 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?
Unknown. Whether the vehicle can be driven is not established by verified evidence.
8. Can I charge the vehicle?
Unknown. Whether the vehicle can be charged is not established by verified evidence.
9. What you can safely do
- Do not attempt high-voltage battery diagnosis or repair yourself.
- Arrange assessment by a qualified BYD service provider or EV technician, as the code is identified as an HV-battery-system DTC.
10. Step-by-step troubleshooting
- Use suitable diagnostic equipment to confirm the stored code and obtain vehicle-specific diagnostic information. Further troubleshooting steps are not established by the supplied verified evidence.
- Do not perform high-voltage battery disassembly, wiring tests, or component replacement without qualified high-voltage training and manufacturer procedures.
11. When to contact service
Service requirement is listed as unknown in the supplied diagnostic record. Because P1A2300 concerns the HV battery, seek assessment from a qualified BYD service provider or EV technician.
12. What the service center may check
- Confirm P1A2300 and review associated diagnostic information. Specific service checks are not established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- BYD ATTO 3 · 2022–2026 · GLOBAL
- BYD DOLPHIN · 2021–2026 · GLOBAL
- BYD HAN · 2023 · GLOBAL
15. Related TSBs / service bulletins
- No technical service bulletins were supplied or established by verified evidence.
16. Recall information
- No recalls were supplied or established by verified evidence.
17. Official manufacturer information
Verified technical-manual-index evidence lists P1A2300 as “BIC4 temperature sampling abnormal” for the applicable BYD vehicle families. No official BYD repair procedure was supplied.
- 17VIN technical manual index: BYD DOLPHIN diagnostic evidence · technical_manual
- 17VIN technical manual index: BYD HAN diagnostic evidence · technical_manual
- OBDTotal technical manual index: BYD ATTO 3 diagnostic evidence · technical_manual
19. Frequently asked questions
What does BYD code P1A2300 mean?
It means “BIC4 temperature sampling abnormal.”
Which system is affected by P1A2300?
The supplied diagnostic record identifies the affected system as the HV battery.
Can I drive with P1A2300?
Not yet established by verified evidence.
Can I charge with P1A2300?
Not yet established by verified evidence.
Which vehicles are supported by the supplied evidence?
BYD ATTO 3 model years 2022–2026, BYD DOLPHIN model years 2021–2026, and BYD HAN model year 2023, each listed for the GLOBAL region.