What does code P27AB mean?

Q: What does code P27AB mean?

Pressure Control Solenoid E Data Incompatible. P27AB indicates that the transmission control module (TCM) has detected an incompatible data signal from pressure control solenoid E, which is responsible for regulating hydraulic pressure inside the automatic transmission. The computer compares the solenoid's expected electrical or hydraulic behavior against actual feedback and sets this code when the values do not match within the allowed range.

DTC codes / P27xx · Transmission / P27AB

P27ABPressure Control Solenoid E Data Incompatible

P27AB indicates that the transmission control module (TCM) has detected an incompatible data signal from pressure control solenoid E, which is responsible for regulating hydraulic pressure inside the automatic transmission. The computer compares the solenoid's expected electrical or hydraulic behavior against actual feedback and sets this code when the values do not match within the allowed range.

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.