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DTC codes / P27xx · Transmission / P2743

P2743Transmission Fluid Temperature Sensor 'B' Circuit High

P2743 indicates that the transmission control module has detected an abnormally high voltage on the signal circuit of transmission fluid temperature sensor 'B', which usually means the circuit is open or shorted to voltage. The sensor itself may be faulty, but wiring and connector problems are equally common causes of this code.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaTransmission
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