Mercedes-Benz There is an internal fault in the stee- ring angle sensor. There is an implausible signal.
There is an internal fault in the stee- ring angle sensor. There is an implausible signal.
Common search variants: There is an internal fault in the steering angle sensor. There is an implausible signal. · Search ignores case and common separators.
Quick answer
Mercedes-Benz communication LI82.90-P-080159 addresses stored DTC C220564 for an implausible internal steering-angle-sensor signal. The bulletin states that, under its described conditions, there is no effect on other vehicle functions and no instrument-cluster warning light.
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 There is an internal fault in the stee- ring angle sensor. There is an implausible signal. mean?
Mercedes-Benz communication LI82.90-P-080159 addresses stored DTC C220564 for an implausible internal steering-angle-sensor signal. The bulletin states that, under its described conditions, there is no effect on other vehicle functions and no instrument-cluster warning light.
2. Technical explanation
The verified manufacturer communication describes DTC C220564 as: “There is an internal fault in the steering angle sensor. There is an implausible signal.” It states that the DTC occurs only during initialization, which occurs after bus sleep. The supplied evidence does not establish a component failure or a specific repair procedure.
3. What system is affected?
Steering angle sensor and N80 Steering Column Control Module (SCCM), as referenced by the manufacturer communication.
4. How serious is this code?
Not yet established by verified evidence. The official communication states that, in the described condition, there is no effect on other vehicle functions and no instrument-cluster light.
5. Symptoms you may notice
- A stored DTC C220564 may be present.
- The manufacturer communication states there is no instrument-cluster light in the described condition.
- The manufacturer communication states there is no effect on other components or vehicle functions in the described condition.
6. Possible causes
- The official communication states the DTC only occurs during initialization after bus sleep.
- A further root cause is not established by the supplied verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence. The official communication states that the described condition has no effect on vehicle functions, but it does not provide a driving-safety determination.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Have the stored code evaluated by an authorized Mercedes-Benz service provider.
- Provide the service provider with NHTSA Manufacturer Communication 11029091 / LI82.90-P-080159.
- Do not assume a steering-angle-sensor replacement is required based on the supplied evidence alone.
10. Step-by-step troubleshooting
- Verify whether DTC C220564 is stored.
- Check whether other control units contain DTCs that point to or reference the N80 Steering Column Control Module (SCCM). The communication describes the addressed scenario as having no such additional DTCs.
- Confirm whether the vehicle condition matches the communication’s described initialization-after-bus-sleep scenario.
11. When to contact service
Contact an authorized Mercedes-Benz service provider for diagnosis, especially if additional DTCs, warning lights, or vehicle-function concerns are present. The supplied evidence does not establish service urgency.
12. What the service center may check
- Retrieve and document DTC C220564.
- Perform a vehicle quick test and determine whether other control units contain DTCs pointing to or referencing the N80 Steering Column Control Module (SCCM).
- Assess applicability of LI82.90-P-080159 to the vehicle and its stored-code condition.
13. Possible repair or resolution
- Not yet established by verified evidence. The supplied bulletin excerpt identifies the condition and its described operating context but does not provide a verified repair resolution.
14. Affected vehicles
- Mercedes-Benz CLA-Class · 2022–2026 · US
- Mercedes-Benz EQE · 2022–2025 · US
- Mercedes-Benz EQS · 2022–2026 · US
- Mercedes-Benz EQS · 2022–2025 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 11029091: Mercedes-Benz LI82.90-P-080159, published February 28, 2026. It addresses stored DTC C220564, “There is an internal fault in the steering angle sensor. There is an implausible signal.” The excerpt states that the DTC only occurs during initialization after bus sleep; no other SCCM-related DTCs are present in the described case; and there is no effect on other vehicle functions or instrument-cluster light.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified official source: NHTSA Manufacturer Communication 11029091, Mercedes-Benz LI82.90-P-080159: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11029091
19. Frequently asked questions
What does Mercedes-Benz DTC C220564 mean?
It means: “There is an internal fault in the steering angle sensor. There is an implausible signal.”
Does this code cause a warning light?
In the condition described by LI82.90-P-080159, the manufacturer states that it does not cause an instrument-cluster light.
Does this code affect vehicle functions?
In the condition described by LI82.90-P-080159, the manufacturer states there is no effect on other components or vehicle functions.
Does the code prove that the steering angle sensor must be replaced?
No. A replacement requirement is not established by the supplied verified evidence.