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DTC codes / P27xx · Transmission / P27D6

P27D6Pressure Control Solenoid S Control Circuit Range/Performance

P27D6 indicates that the transmission control module (TCM) has detected an abnormal range or performance from the pressure control solenoid S circuit, which regulates hydraulic pressure inside the transmission. The computer compares the solenoid's commanded current or duty cycle against expected values and sets this code when the circuit's response falls outside the valid range for a calibrated period.

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.

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