What does code P27C0 mean?

Q: What does code P27C0 mean?

Pressure Control Solenoid N Control Circuit High. P27C0 indicates that the transmission control module (TCM) has detected an abnormally high voltage on the control circuit for pressure control solenoid N. This solenoid is one of several linear solenoids the TCM uses to regulate hydraulic pressure inside the automatic transmission, and a high-voltage reading typically means the circuit is open, shorted to power, or the solenoid's internal coil has failed.

DTC codes / P27xx · Transmission / P27C0

P27C0Pressure Control Solenoid N Control Circuit High

P27C0 indicates that the transmission control module (TCM) has detected an abnormally high voltage on the control circuit for pressure control solenoid N. This solenoid is one of several linear solenoids the TCM uses to regulate hydraulic pressure inside the automatic transmission, and a high-voltage reading typically means the circuit is open, shorted to power, or the solenoid's internal coil has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaTransmission

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.