What does code P2DA3 mean?

Q: What does code P2DA3 mean?

Gear Shift Control Module B Overtemperature. P2DA3 indicates that the transmission control module (TCM) has detected an excessive temperature condition within the gear shift control module B, which is often a separate actuator or control unit responsible for executing gear changes. The TCM sets this code when the module's internal temperature sensor reports a value above the calibrated threshold, typically due to high electrical current, poor cooling, or a failing component.

DTC codes / P2Dxx · Hybrid propulsion / P2DA3

P2DA3Gear Shift Control Module B Overtemperature

P2DA3 indicates that the transmission control module (TCM) has detected an excessive temperature condition within the gear shift control module B, which is often a separate actuator or control unit responsible for executing gear changes. The TCM sets this code when the module's internal temperature sensor reports a value above the calibrated threshold, typically due to high electrical current, poor cooling, or a failing component.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

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