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TuningBot DTC Database · v4.37.15

P1856 Diagnostic Trouble Code (3 interpretations)

3 manufacturer-specific interpretations across 3 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2

Ford

1 interpretation
P1856
Transmission Transfer Case Contact Plate 'C' Short Circuit To Battery Ford · engine Data confidence 62%

The control module detected a short circuit to battery voltage in the Transmission Transfer Case Contact Plate 'C' circuit. This is the manufacturer-specific definition used by Ford.

Mercedes-Benz

1 interpretation
P1856
Transmission shift lever recognition - malfunction Mercedes-Benz · engine Data confidence 62%

The control module detected improper operation of the Transmission shift lever recognition. This is the manufacturer-specific definition used by Mercedes-Benz.

Possible causes

Transmission shift lever control module

VAG

1 interpretation
P1856
Throttle Pedal Position Sensor A Circuit Error Message From Engine Control VAG · engine Data confidence 62%

The control module registered the fault condition described as "Throttle Pedal Position Sensor A Circuit Error Message From Engine Control". This is the manufacturer-specific definition used by Volkswagen.

Applies to Volkswagen

Related and nearby codes

How to read P1856

P

Powertrain: engine, transmission and driveline systems.

1

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

856

Specific fault index within the subsystem.

Frequently asked questions about P1856

What does P1856 mean?

Diagnostic Trouble Code (3 interpretations). The control module detected a short circuit to battery voltage in the Transmission Transfer Case Contact Plate 'C' circuit. This is the manufacturer-specific definition used by Ford.

Is P1856 generic or manufacturer-specific?

P1856 is a manufacturer-specific code. In this database it is documented for: Ford, Mercedes-Benz, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1856 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

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