The control module detected improper operation of the CAN data bus, stop lamp switch. This is the manufacturer-specific definition used by Mercedes-Benz.
Possible causes
- Wiring
- trouble code(s) stored in other system(s)
- electronic ignition switch
TuningBot DTC Database · v4.37.15
3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
The control module detected improper operation of the CAN data bus, stop lamp switch. This is the manufacturer-specific definition used by Mercedes-Benz.
The control module detected an interruption (open circuit) in the Charge air coolant pump relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.
The control module detected an interruption (open circuit) in the Charge Air Coolant Pump Relay circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (3 interpretations). The control module detected improper operation of the CAN data bus, stop lamp switch. This is the manufacturer-specific definition used by Mercedes-Benz.
P1906 is a manufacturer-specific code. In this database it is documented for: Mercedes-Benz, VAG. The same number can mean something different on other brands.
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.
Understand the system behind this code: Diagnostic Strategy and DTC Logic