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TuningBot DTC Database · v4.37.15

P1861 Mercedes-Benz - CAN data bus, VSS signal, rear axle - malfunction

Manufacturer-specific interpretation for Mercedes-Benz. All interpretations of P1861

P · PowertrainEngineOBD2

What P1861 means

P1861
CAN data bus, VSS signal, rear axle - malfunction Mercedes-Benz · engine Data confidence 62%

The control module detected improper operation of the CAN data bus, VSS signal, rear axle. This is the manufacturer-specific definition used by Mercedes-Benz.

Possible causes

  • Wiring
  • trouble code(s) stored in other system(s)

Related and nearby codes

How to read P1861

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

861

Specific fault index within the subsystem.

Frequently asked questions about P1861

What does P1861 mean?

CAN data bus, VSS signal, rear axle - malfunction. The control module detected improper operation of the CAN data bus, VSS signal, rear axle. This is the manufacturer-specific definition used by Mercedes-Benz.

Is P1861 generic or manufacturer-specific?

P1861 is a manufacturer-specific code. In this database it is documented for: Mercedes-Benz. The same number can mean something different on other brands.

Can TuningBot remove P1861 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Mercedes engines See the results →

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