The control module detected an interruption (open circuit) in the Transmission Transfer Case Shift Motor circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Ford.
TuningBot DTC Database · v4.37.15
P1839 Ford - Transmission Transfer Case Shift Motor Open Circuit
Manufacturer-specific interpretation for Ford. All interpretations of P1839
What P1839 means
Related and nearby codes
How to read P1839
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1839
What does P1839 mean?
Transmission Transfer Case Shift Motor Open Circuit. The control module detected an interruption (open circuit) in the Transmission Transfer Case Shift Motor circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Ford.
Is P1839 generic or manufacturer-specific?
P1839 is a manufacturer-specific code. In this database it is documented for: Ford. The same number can mean something different on other brands.
Can TuningBot remove P1839 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
Understand the system behind this code: Diagnostic Strategy and DTC Logic
