Verified EV diagnostic knowledge page

BMW 80415B

“Engine compartment lid contact switch: Line fault or faulty” is often stored inthe BCP module

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceBMW service should be contacted for diagnosis if message 811 remains displayed with the hood closed or code 80415B is stored.
Confidence97%

Quick answer

BMW code 80415B is documented for certain 2022–2024 US BMW iX vehicles in connection with an engine-compartment lid contact-switch line fault or faulty switch condition. BMW/NHTSA communication B612124 states that Check Control message 811, “Stop carefully. Hood open,” may display even when the hood is closed, and 80415B is often stored in the BCP module.

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 80415B mean?

BMW code 80415B is documented for certain 2022–2024 US BMW iX vehicles in connection with an engine-compartment lid contact-switch line fault or faulty switch condition. BMW/NHTSA communication B612124 states that Check Control message 811, “Stop carefully. Hood open,” may display even when the hood is closed, and 80415B is often stored in the BCP module.

2. Technical explanation

Verified evidence identifies 80415B as: “Engine compartment lid contact switch: Line fault or faulty.” The official manufacturer communication says this code is often stored in the BCP module when the vehicle displays Check Control message 811, “Stop carefully. Hood open,” despite the hood being closed.

3. What system is affected?

Engine compartment lid/hood contact-switch circuit and the BCP module.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Check Control message 811: “Stop carefully. Hood open.”
  • The hood-open message may be displayed even though the hood is closed.
  • Fault code 80415B may be stored in the BCP module.

6. Possible causes

  • An engine compartment lid contact-switch line fault or faulty contact switch is indicated by the documented fault description.

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

  • Verify that the hood is fully closed and latched before operating the vehicle.
  • Arrange professional BMW diagnosis if the warning remains displayed or code 80415B is present.
  • Do not attempt high-voltage system repairs; no high-voltage repair procedure is established by the verified evidence.

10. Step-by-step troubleshooting

  1. A BMW-capable diagnostic scan can confirm whether 80415B is stored in the BCP module.
  2. Further diagnostic steps are not established by the verified evidence provided.

11. When to contact service

BMW service should be contacted for diagnosis if message 811 remains displayed with the hood closed or code 80415B is stored.

12. What the service center may check

  • Confirm the reported Check Control message and whether the hood is closed.
  • Check the BCP module for stored code 80415B.
  • Additional service checks are not established by verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 11008117 / BMW bulletin B612124, published September 25, 2024. It documents message 811, “Stop carefully. Hood open,” displaying with the hood closed and code 80415B often stored in the BCP module.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication 11008117, BMW bulletin B612124: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=11008117

19. Frequently asked questions

What does BMW code 80415B mean?

It means: “Engine compartment lid contact switch: Line fault or faulty.”

Can code 80415B cause a hood-open warning when the hood is closed?

Yes. BMW bulletin B612124 states that message 811, “Stop carefully. Hood open,” may display even though the hood is closed, with 80415B often stored in the BCP module.

Which vehicles are covered by the verified applicability data?

The verified applicability data identifies US-market BMW iX vehicles from model years 2022 through 2024.

Is it safe to drive or charge with 80415B?

Not yet established by verified evidence.

20. Sources & verification

Verified
BMW 80415B: “Engine compartment lid contact switch: Line fault or… | EV Diagnostics