What does code P27E8 mean?

Q: What does code P27E8 mean?

Transmission Range Control B Circuit Performance. P27E8 indicates that the transmission control module (TCM) has detected a performance fault in the 'B' circuit that controls transmission range selection, such as the signal from a range sensor or switch. The TCM compares expected circuit behavior against actual voltage or position feedback and sets this code when the signal is out of range, erratic, or implausible for the commanded range.

DTC codes / P27xx · Transmission / P27E8

P27E8Transmission Range Control B Circuit Performance

P27E8 indicates that the transmission control module (TCM) has detected a performance fault in the 'B' circuit that controls transmission range selection, such as the signal from a range sensor or switch. The TCM compares expected circuit behavior against actual voltage or position feedback and sets this code when the signal is out of range, erratic, or implausible for the commanded range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.