Mercedes-Benz The electric power steering has a malfunction. There is a runtime error.
The electric power steering has a malfunction. There is a runtime error.
Quick answer
For applicable 2022 Mercedes-Benz EQS vehicles in the US, this alert is documented in an NHTSA-published Mercedes-Benz communication as P063547, indicating an electric power steering runtime error in control unit N68. The documented remedy is a software update of the electric power steering control unit, with the guided check in XENTRY Diagnosis also to be observed.
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1. What does The electric power steering has a malfunction. There is a runtime error. mean?
For applicable 2022 Mercedes-Benz EQS vehicles in the US, this alert is documented in an NHTSA-published Mercedes-Benz communication as P063547, indicating an electric power steering runtime error in control unit N68. The documented remedy is a software update of the electric power steering control unit, with the guided check in XENTRY Diagnosis also to be observed.
2. Technical explanation
NHTSA Manufacturer Communication 10227144 (LI46.35-P-075511), published November 7, 2022, documents P063547 with the description: “The electric power steering has a malfunction. There is a runtime error.” The communication identifies a software error when starting the electric power steering control unit (N68) as the cause in the described condition. Its stated remedy is to perform a software update of control unit N68 and follow the guided check in XENTRY Diagnosis.
3. What system is affected?
Electric power steering; electric power steering control unit N68.
4. How serious is this code?
Not yet established by verified evidence. The supplied diagnostic record lists severity as unknown.
5. Symptoms you may notice
- The NHTSA-published communication describes power steering being unavailable following vehicle start.
- The communication describes a warning message in the instrument cluster.
6. Possible causes
- A software error when starting the electric power steering control unit (N68), as identified in NHTSA Manufacturer Communication 10227144 for the described condition.
7. Can I still drive the vehicle?
Not yet established by verified evidence. The supplied diagnostic record lists safe-to-drive status as unknown.
8. Can I charge the vehicle?
Not yet established by verified evidence. The supplied diagnostic record lists safe-to-charge status as unknown.
9. What you can safely do
- Arrange diagnosis by a qualified Mercedes-Benz service facility.
- Have the guided check in XENTRY Diagnosis performed as specified in the manufacturer communication.
10. Step-by-step troubleshooting
- A service facility can check the electric power steering control unit (N68) using XENTRY Diagnosis and follow the guided check referenced in LI46.35-P-075511.
- The manufacturer communication specifies updating the software of electric power steering control unit N68 for the documented condition.
11. When to contact service
Contact a Mercedes-Benz service facility for diagnosis and the documented control-unit software update.
12. What the service center may check
- Check fault codes and freeze-frame data in electric power steering control unit N68.
- Follow the guided check in XENTRY Diagnosis.
- Perform the software update of electric power steering control unit N68 when applicable.
13. Possible repair or resolution
- Perform a software update of electric power steering control unit N68, as specified in NHTSA Manufacturer Communication 10227144.
- Observe the guided XENTRY Diagnosis check.
14. Affected vehicles
- Mercedes-Benz EQS · 2022 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 10227144, Mercedes-Benz LI46.35-P-075511, published November 7, 2022. It documents the described power-steering-unavailable condition after start, including P063547 with Mon_ID 33, and identifies a software error during startup of control unit N68. The stated remedy is an N68 software update and the XENTRY guided check.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication 10227144, LI46.35-P-075511: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10227144. Verified applicability supplied: 2022 Mercedes-Benz EQS, US.
19. Frequently asked questions
What does this electric power steering runtime-error alert mean?
It corresponds to P063547 in the cited manufacturer communication: “The electric power steering has a malfunction. There is a runtime error.” The communication concerns the electric power steering control unit N68.
What remedy does Mercedes-Benz document?
The cited communication states to perform a software update of electric power steering control unit N68 and observe the guided check in XENTRY Diagnosis.
Is this confirmed to be safe to drive?
Not yet established by verified evidence. The supplied diagnostic record lists safe-to-drive status as unknown.