Chevrolet P0A9D
DTC P0AC6 Hybrid/EV Battery Temperature Sensor 2 Performance, DTC P0AC7 Hybrid/EV Battery Temperature Sensor 2 Circuit Low Voltage, DTC P0AC8 Hybrid/EV Battery Temperature Sensor 2
Quick answer
For a 2013 Chevrolet Volt (US), verified GM/NHTSA bulletin evidence identifies P0AC6, P0AC7, and P0AC8 as Hybrid/EV Battery Temperature Sensor 2 diagnostic trouble codes. The supplied record labels the diagnostic P0A9D, but the cited bulletin associates P0A9D with Battery Temperature Sensor 1, not Sensor 2.
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 P0A9D mean?
For a 2013 Chevrolet Volt (US), verified GM/NHTSA bulletin evidence identifies P0AC6, P0AC7, and P0AC8 as Hybrid/EV Battery Temperature Sensor 2 diagnostic trouble codes. The supplied record labels the diagnostic P0A9D, but the cited bulletin associates P0A9D with Battery Temperature Sensor 1, not Sensor 2.
2. Technical explanation
The verified bulletin states that Hybrid/EV battery module temperature is used to control battery cooling-system operation. It identifies Battery Temperature Sensor 2 codes as: P0AC6 (performance), P0AC7 (circuit low voltage), and P0AC8 (circuit high voltage; the supplied excerpt truncates after “Circuit”). It identifies P0A9D as Battery Temperature Sensor 1 circuit low voltage. The reason the supplied diagnostic record combines P0A9D with Sensor 2 codes is not established by verified evidence.
3. What system is affected?
Hybrid/EV battery temperature sensing and battery cooling-system control.
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
- Arrange professional diagnosis by a qualified Chevrolet/EV service provider.
- Do not attempt high-voltage battery or temperature-sensor repair based on this information.
10. Step-by-step troubleshooting
- Confirm the exact stored DTC(s). Verified evidence distinguishes P0A9D from the Sensor 2 codes P0AC6, P0AC7, and P0AC8.
- A qualified technician should use applicable manufacturer diagnostic information. Specific test steps are not established by the supplied verified evidence.
11. When to contact service
Service need is not established by the supplied evidence; however, qualified EV service is appropriate to confirm the exact code and evaluate the battery-temperature sensing system.
12. What the service center may check
- Confirm whether the vehicle has P0A9D, P0AC6, P0AC7, P0AC8, or more than one code.
- Evaluate the Hybrid/EV battery temperature-sensing system using applicable manufacturer procedures. Further specific checks are not established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Chevrolet Volt · 2013 · US
15. Related TSBs / service bulletins
- GM/NHTSA Manufacturer Communication 18NA342, published November 19, 2018 (NHTSA document MC-10155116-9999), identifies Hybrid/EV battery temperature-sensor DTC associations.
- The supplied evidence does not establish the full bulletin applicability, repair procedure, or a specific repair for the listed vehicle/code.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified source: NHTSA Manufacturer Communication PDF 10155116, GM bulletin 18NA342: https://static.nhtsa.gov/odi/tsbs/2018/MC-10155116-9999.pdf
19. Frequently asked questions
What does P0A9D mean according to the verified bulletin?
The bulletin identifies P0A9D as Hybrid/EV Battery Temperature Sensor 1 Circuit Low Voltage.
Which codes are associated with Hybrid/EV Battery Temperature Sensor 2?
The verified bulletin lists P0AC6 (performance), P0AC7 (circuit low voltage), and P0AC8 (circuit high voltage, based on the code grouping and truncated supplied excerpt).
What vehicle applicability is verified?
The supplied applicability record identifies a 2013 Chevrolet Volt in the United States.