The control module detected improper operation of the Transmission Transfer Case Contact Plate 'A' circuit. This is the manufacturer-specific definition used by Ford.
TuningBot DTC Database · v4.37.15
P1846 Diagnostic Trouble Code (2 interpretations)
2 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
Ford
1 interpretation
Nissan
1 interpretationThe control module detected a fault associated with the Automatic Transmission Fluid Pressure Switch 6 circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Nissan.
Related and nearby codes
How to read P1846
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 P1846
What does P1846 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected improper operation of the Transmission Transfer Case Contact Plate 'A' circuit. This is the manufacturer-specific definition used by Ford.
Is P1846 generic or manufacturer-specific?
P1846 is a manufacturer-specific code. In this database it is documented for: Ford, Nissan. The same number can mean something different on other brands.
Can TuningBot remove P1846 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
