Chrysler P1A2A-00
00 Cell Supervisory Circuits Customer Complaint/Technician Observation: Owner complaint no start Mil lamp on. Technician Observed Mil lamp on and DTC’s P1A2A-00, P1A29-00 Superviso
Common search variants: P1A2A00 · P1A2A 00 · P1A2A_00 · Search ignores case and common separators.
Quick answer
For 2017–2018 Chrysler Pacifica PHEV vehicles in the US, P1A2A-00 is documented by FCA/NHTSA material with a no-start/no-crank condition and MIL illumination, often alongside P1A29-00. The published procedure directs module updates associated with recalls/service actions T34, U73, and U94.
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 P1A2A-00 mean?
For 2017–2018 Chrysler Pacifica PHEV vehicles in the US, P1A2A-00 is documented by FCA/NHTSA material with a no-start/no-crank condition and MIL illumination, often alongside P1A29-00. The published procedure directs module updates associated with recalls/service actions T34, U73, and U94.
2. Technical explanation
Verified FCA communication S2008000019 identifies P1A2A-00 and P1A29-00 as cell supervisory circuit DTCs in the reported condition. It states that 2017–2018 PHEV vehicles may be linked to multiple recalls or service actions requiring multiple module updates so systems operate as desired.
3. What system is affected?
Cell supervisory circuits. No further system detail is established by the supplied verified evidence.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- No start
- No crank
- MIL lamp illuminated
- P1A2A-00 and P1A29-00 may be present together
6. Possible causes
- The supplied verified evidence does not establish a component-level root cause.
- FCA states that affected 2017–2018 PHEV vehicles may require multiple module updates associated with recalls or service actions.
7. Can I still drive the vehicle?
Not yet established by verified evidence. The documented vehicle condition is no start/no crank.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis by an authorized Chrysler/FCA service facility or qualified technician.
- Provide the stored DTCs, including P1A2A-00 and any accompanying P1A29-00, to the service facility.
- Do not attempt high-voltage battery or cell-supervisory-circuit repairs yourself.
10. Step-by-step troubleshooting
- Confirm stored DTCs using appropriate diagnostic equipment.
- Check whether the vehicle has applicable recall or service-action module updates referenced by FCA: T34, U73, and U94.
- Have the required module updates performed according to the applicable FCA procedure.
11. When to contact service
Contact an authorized Chrysler/FCA service facility. The verified FCA communication instructs creation of a TACT ticket if no solution is found.
12. What the service center may check
- Retrieve and document DTCs, including P1A2A-00 and P1A29-00 where present.
- Determine whether recalls/service actions T34, U73, and U94 apply to the vehicle.
- Verify required module-update status using FCA service procedures.
13. Possible repair or resolution
- FCA's documented repair direction is to update the modules listed in recall/service actions T34, U73, and U94, as applicable.
- If the issue is not resolved, FCA's communication directs creation of a TACT ticket.
14. Affected vehicles
- Chrysler Pacifica · 2017–2018 · US
15. Related TSBs / service bulletins
- FCA US LLC case number S2008000019, release date March 6, 2020; published by NHTSA as manufacturer communications MC-10175062, MC-10175474, and MC-10174142. It covers no start/no crank with MIL on and DTCs P1A2A-00 and P1A29-00 for 2017–2018 PHEV vehicles.
16. Recall information
- The supplied communication references recall/service actions T34, U73, and U94. Applicability and recall status for an individual vehicle are not established by the supplied evidence and should be verified by VIN.
17. Official manufacturer information
Official NHTSA-hosted FCA communication: https://static.nhtsa.gov/odi/tsbs/2020/MC-10175062-9999.pdf
19. Frequently asked questions
What does P1A2A-00 indicate in the supplied FCA communication?
It is identified as a cell supervisory circuits DTC and is documented with P1A29-00 in a no-start/no-crank, MIL-on condition.
Which vehicles are supported by the supplied evidence?
US-market 2017–2018 Chrysler Pacifica PHEV vehicles.
Is a module update part of the documented repair direction?
Yes. FCA states that multiple module updates may be required and directs updates listed in T34, U73, and U94 as applicable.
Can the vehicle be driven or charged with P1A2A-00?
Not yet established by verified evidence. The documented condition is no start/no crank.