What does code P2805 mean?

Q: What does code P2805 mean?

Transmission Range Sensor A/B Correlation. P2805 means the transmission control module (TCM) has detected an implausible relationship between the signals from two internal range sensors, typically called Sensor A and Sensor B, that report which gear or range the transmission is in. The computer compares the two independent position signals and sets this code when they disagree beyond a calibrated threshold, indicating a correlation fault rather than a simple open circuit.

DTC codes / P28xx · Transmission / P2805

P2805Transmission Range Sensor A/B Correlation

P2805 means the transmission control module (TCM) has detected an implausible relationship between the signals from two internal range sensors, typically called Sensor A and Sensor B, that report which gear or range the transmission is in. The computer compares the two independent position signals and sets this code when they disagree beyond a calibrated threshold, indicating a correlation fault rather than a simple open circuit.

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.