Verified EV diagnostic knowledge page

Chevrolet P0D40

Customer Concern Not Duplicated (CCND) Customer states the engine wont crank or start. Performed related system verification procedure in SI with no DTCs found and unable to duplic

DriveNot yet established by verified evidence. The supplied charging example states that the vehicle was moving at the time described, but that does not establish whether every vehicle with P0D40 is safe to drive.
ChargeNot yet established by verified evidence. The supplied evidence includes a customer report of inability to charge, but it does not establish charging status or safety for every P0D40 occurrence.
ServiceContact a Chevrolet dealer or qualified service facility if charging is unavailable, a message is displayed, or the vehicle has a no-crank/no-start concern. The appropriate repair path depends on the results of vehicle-specific service verification.
Confidence95%

Quick answer

P0D40 is documented in Chevrolet bulletin 22-NA-038 as a Customer Concern Not Duplicated (CCND) entry. The supplied evidence includes an example involving a reported EV charging concern with active P0D4F and P0D40, where the charger module was replaced and proper operation was verified. It also includes a separate CCND example for a reported no-crank/no-start concern with no DTCs found and the concern not duplicated.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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DTC Chevrolet P0D40 Short ExplanationMaxidot Chevrolet

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1. What does P0D40 mean?

P0D40 is documented in Chevrolet bulletin 22-NA-038 as a Customer Concern Not Duplicated (CCND) entry. The supplied evidence includes an example involving a reported EV charging concern with active P0D4F and P0D40, where the charger module was replaced and proper operation was verified. It also includes a separate CCND example for a reported no-crank/no-start concern with no DTCs found and the concern not duplicated.

2. Technical explanation

The verified material identifies P0D40 within Chevrolet’s CCND documentation rather than establishing a single component failure definition. Bulletin 22-NA-038 contains an EV charging example: the customer reported that the EV would not charge and that a message was displayed; charging and system operation were verified, and active P0D4F and P0D40 were found. In that example, the charger module was replaced and proper operation was verified. The same supplied bulletin evidence also describes a 12 V battery/no-crank-no-start CCND example in which the related system verification procedure in SI was performed, no DTCs were found, and the concern could not be duplicated.

3. What system is affected?

Hybrid/EV electronics and charging are identified in the supplied bulletin’s charging example. The supplied evidence also references a 12 V battery low-voltage/no-crank-no-start CCND example. A single affected system for every P0D40 occurrence is not yet established by verified evidence.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • A customer-reported inability to charge and a displayed message are documented in the bulletin’s EV charging example.
  • A customer-reported engine no-crank/no-start condition is documented in a separate CCND example.
  • In the charging CCND example, no warning lights or DTCs were present during one verification attempt and the concern could not be duplicated.
  • In the 12 V battery/no-crank-no-start CCND example, no DTCs were found and the concern could not be duplicated.

6. Possible causes

  • The supplied evidence documents active P0D4F and P0D40 in one charging case, followed by charger-module replacement and verification of proper operation.
  • The evidence does not establish that the charger module is the cause of every P0D40 occurrence.
  • Other causes are not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence. The supplied charging example states that the vehicle was moving at the time described, but that does not establish whether every vehicle with P0D40 is safe to drive.

8. Can I charge the vehicle?

Not yet established by verified evidence. The supplied evidence includes a customer report of inability to charge, but it does not establish charging status or safety for every P0D40 occurrence.

9. What you can safely do

  • Have the concern evaluated using the applicable Chevrolet service information and diagnostic procedures.
  • Record any DTCs and the customer’s reported condition for service documentation, consistent with the bulletin’s CCND guidance.
  • Do not attempt high-voltage or charger-module repair yourself.

10. Step-by-step troubleshooting

  1. The supplied bulletin describes verifying proper charging and system operation for a reported charging concern.
  2. For the reported no-crank/no-start CCND example, the bulletin states that the related system verification procedure in SI was performed.
  3. If active P0D4F and P0D40 are present, the bulletin documents one case in which the charger module was replaced and proper operation was verified.

11. When to contact service

Contact a Chevrolet dealer or qualified service facility if charging is unavailable, a message is displayed, or the vehicle has a no-crank/no-start concern. The appropriate repair path depends on the results of vehicle-specific service verification.

12. What the service center may check

  • Verify charging and system operation for a charging-related complaint, as described in bulletin 22-NA-038.
  • Check whether warning lights or DTCs are present during the concern.
  • Perform the related SI system verification procedure for a reported no-crank/no-start condition, as referenced by the bulletin.
  • Document applicable DTC numbers in service verbatims, consistent with the bulletin’s CCND guidance.

13. Possible repair or resolution

  • In one documented EV charging case with active P0D4F and P0D40, the charger module was replaced and proper operation was verified.
  • No universal repair for P0D40 is established by the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Chevrolet bulletin 22-NA-038, published through NHTSA manufacturer communications on April 25, 2022, December 7, 2022, and October 2, 2023. The supplied evidence documents CCND examples involving EV charging and a 12 V battery/no-crank-no-start concern.
  • NHTSA communication 10244276: https://static.nhtsa.gov/odi/tsbs/2023/MC-10244276-0001.pdf
  • NHTSA communication 10227799: https://static.nhtsa.gov/odi/tsbs/2022/MC-10227799-0001.pdf
  • NHTSA communication 10211073: https://static.nhtsa.gov/odi/tsbs/2022/MC-10211073-0001.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official source: NHTSA-hosted Chevrolet manufacturer communication bulletin 22-NA-038. The supplied applicability data lists U.S. Chevrolet Blazer (2022–2024), Bolt EUV (2022–2024), Bolt EV (2022–2024), and Equinox (2022–2024).

19. Frequently asked questions

What does P0D40 mean in the supplied Chevrolet evidence?

It is documented as part of Chevrolet CCND material. The supplied text includes a charging case with active P0D4F and P0D40 and a separate no-crank/no-start CCND example. A universal component-specific meaning is not established by verified evidence.

Does P0D40 mean the charger module must be replaced?

No universal replacement requirement is established. In one documented charging case with active P0D4F and P0D40, the charger module was replaced and proper operation was verified.

Which vehicles are listed in the supplied applicability data?

U.S. Chevrolet Blazer 2022–2024, Bolt EUV 2022–2024, Bolt EV 2022–2024, and Equinox 2022–2024 are listed. The evidence does not establish identical diagnosis or repair for every listed vehicle.

20. Sources & verification

ReferenceVerified
Chevrolet P0D40: Customer Concern Not Duplicated (CCND) Customer… | EV Diagnostics