Kia P1B74
Frame Data. This can be done with two (2) screenshots per DTC. c) Select the BMS system and save screenshots of Current Data. (Number of screenshots will vary by model.) Screensh
Quick answer
For a US-market 2018–2022 Kia Niro, P1B74 is identified in Kia’s high-voltage-battery (HVB) DTC documentation. The supplied evidence does not establish a technical fault definition for this code.
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 P1B74 mean?
For a US-market 2018–2022 Kia Niro, P1B74 is identified in Kia’s high-voltage-battery (HVB) DTC documentation. The supplied evidence does not establish a technical fault definition for this code.
2. Technical explanation
Kia TSB ELE044 revisions 2 and 3 list P1B74 as an example of an HVB DTC. The bulletin instructs service personnel to use KDS to scan for DTCs, save the DTC search results, save freeze-frame data for each DTC, and save BMS current-data screenshots when an HVB DTC such as P1B74 is found. The supplied canonical title and meaning are documentation text rather than a verified definition of the fault.
3. What system is affected?
High-voltage battery (HVB); battery management system (BMS) data collection is specified by the Kia bulletin.
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 diagnosis by a Kia-qualified service facility.
- Record the code and any displayed vehicle messages for the service visit.
- Do not attempt high-voltage battery or BMS repair procedures yourself.
10. Step-by-step troubleshooting
- A service department should use Kia KDS to scan for DTCs.
- For P1B74, Kia’s bulletin directs the service department to save screenshots of DTC search results.
- The bulletin directs saving freeze-frame data for each DTC; it states this can require two screenshots per DTC.
- The bulletin directs selecting the BMS system and saving current-data screenshots; the number varies by model.
11. When to contact service
Contact a Kia-qualified service facility for diagnosis. Kia’s supplied bulletin provides a documentation process for HVB DTCs and high-voltage-battery requests.
12. What the service center may check
- KDS DTC scan.
- DTC search-result screenshots.
- Freeze-frame data capture for each DTC.
- BMS current-data capture.
13. Possible repair or resolution
- Not yet established by verified evidence. The supplied Kia bulletin concerns the documentation procedure when requesting a high-voltage battery; it does not establish that a battery replacement is required for P1B74.
14. Affected vehicles
- Kia Niro · 2018–2022 · US
15. Related TSBs / service bulletins
- Kia TSB ELE044 Rev 3, published April 7, 2022: high-voltage-battery ordering procedure; lists P1B74 among example HVB DTCs and specifies KDS, freeze-frame, and BMS current-data documentation.
- Kia TSB ELE044 Rev 2, published August 19, 2021: prior revision with the same supplied P1B74 documentation instructions.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official manufacturer communications are available through NHTSA: TSB ELE044 Rev 3 (https://static.nhtsa.gov/odi/tsbs/2022/MC-10210264-0001.pdf) and TSB ELE044 Rev 2 (https://static.nhtsa.gov/odi/tsbs/2021/MC-10200535-0001.pdf). The bulletins state that printed copies are for reference and that the latest information should be checked in Kia KGIS.
19. Frequently asked questions
What does Kia P1B74 mean?
Not yet established by verified evidence. The supplied Kia bulletin identifies P1B74 as an HVB DTC but does not provide a technical fault definition.
Which vehicles are supported by the supplied evidence?
The supplied applicability record identifies US-market Kia Niro vehicles from model years 2018 through 2022.
Does P1B74 mean the high-voltage battery must be replaced?
No conclusion is established by the supplied evidence. The bulletin describes documentation required when requesting a high-voltage battery, but does not state that P1B74 alone requires replacement.
What information should a service department collect?
Kia’s bulletin specifies KDS DTC results, freeze-frame data for each DTC, and BMS current-data screenshots.