The control module detected an interruption (open circuit) in the Transmission Range Control B Position Sensor/Switch circuit, so the expected electrical continuity was not present.
TuningBot DTC Database · v4.37.15
P27EF Transmission Range Control B Position Sensor/Switch Circuit/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P27EF means
Related and nearby codes
How to read P27EF
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P27EF
What does P27EF mean?
Transmission Range Control B Position Sensor/Switch Circuit/Open. The control module detected an interruption (open circuit) in the Transmission Range Control B Position Sensor/Switch circuit, so the expected electrical continuity was not present.
Is P27EF generic or manufacturer-specific?
P27EF is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P27EF 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
