Cadillac 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
Quick answer
P0D40 is recorded here as a Customer Concern Not Duplicated (CCND) entry for a reported no-crank/no-start concern. The supplied evidence does not establish a confirmed fault, driving status, charging status, or a specific repair for this condition.
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 P0D40 mean?
P0D40 is recorded here as a Customer Concern Not Duplicated (CCND) entry for a reported no-crank/no-start concern. The supplied evidence does not establish a confirmed fault, driving status, charging status, or a specific repair for this condition.
2. Technical explanation
The verified database meaning is: the customer reported that the engine would not crank or start; the related Service Information verification procedure was performed, no DTCs were found, and the concern could not be duplicated. This is a CCND documentation context rather than verified evidence of a single failed component.
3. What system is affected?
Not yet established by verified evidence. The supplied bulletin material categorizes the example under Battery Systems and identifies it as a 12V battery low-voltage/no-current-low-voltage-DTC CCND scenario, but it does not establish a failed system or component for an individual vehicle.
4. How serious is this code?
Unknown. The supplied verified evidence does not assign a severity level.
5. Symptoms you may notice
- Customer report that the engine will not crank or start.
- No DTCs found during the related system verification procedure.
- Concern unable to be duplicated.
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
- If the no-crank/no-start concern is present, arrange evaluation by an authorized Cadillac service facility.
- Provide the service facility with the exact warning messages, conditions when the concern occurred, and whether it is intermittent.
- Do not attempt high-voltage diagnosis or repair yourself.
10. Step-by-step troubleshooting
- A related system verification procedure in Service Information was performed in the verified CCND example.
- No DTCs were found in the verified no-crank/no-start CCND example.
- The concern could not be duplicated in that example.
11. When to contact service
Contact an authorized Cadillac service facility if the no-crank/no-start condition occurs or recurs. The verified evidence does not establish a do-it-yourself repair.
12. What the service center may check
- Perform the applicable related-system verification procedure in Service Information.
- Check for DTCs as part of the applicable diagnostic process.
- Document the customer concern and the conditions under which it occurred if the condition cannot be duplicated.
13. Possible repair or resolution
- Not yet established by verified evidence. In the supplied no-crank/no-start CCND example, no confirmed repair is stated.
- The supplied TSB evidence separately describes a charging-related example with active P0D4F and P0D40 in which a charger module was replaced and proper operation was verified. That repair is not verified as applicable to the no-crank/no-start concern.
14. Affected vehicles
- Cadillac LYRIQ · 2023 · US
- Cadillac LYRIQ · 2023–2024 · US
15. Related TSBs / service bulletins
- GM Bulletin 22-NA-038, published through NHTSA manufacturer communications on December 7, 2022 (MC-10227799) and October 2, 2023 (MC-10244276). The supplied evidence includes CCND examples, including a no-crank/no-start example with no DTCs and an unable-to-duplicate result.
- Official source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10244276-0001.pdf
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified applicability in the supplied database: 2023–2024 Cadillac LYRIQ, United States. A duplicate 2023 Cadillac LYRIQ US applicability entry is also supplied. Official NHTSA-hosted bulletin: https://static.nhtsa.gov/odi/tsbs/2023/MC-10244276-0001.pdf
19. Frequently asked questions
What does P0D40 mean in the supplied Cadillac evidence?
It is recorded as a Customer Concern Not Duplicated entry for a customer report that the engine would not crank or start. The related Service Information procedure found no DTCs and could not duplicate the concern.
Does P0D40 prove a component has failed?
No. The supplied verified evidence does not establish a failed component for the no-crank/no-start CCND example.
Does the evidence say it is safe to drive or charge?
No. Driving and charging status are not established by the supplied verified evidence.
Does the bulletin establish that the charger module should be replaced for P0D40?
No. The supplied evidence describes charger-module replacement only in a separate charging-related example with active P0D4F and P0D40. It does not establish that repair for the no-crank/no-start CCND example.