P0784 AUDI – 4-5 Shift Malfunction

P0784 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Transmission may not shift to the next gear

P0784 AUDI Possible Causes

Low transmission fluid level,Dirty transmission fluid,Faulty shifting solenoid valve,Shifting solenoid valve harness is open or shorted,Shifting solenoid valve circuit poor electrical connection

P0784 AUDI Description

This P0784 code indicates that the 4-5 shift valve in the valve body is locked in the direction of the spring compression. The Transmission Control Module (TCM) controls the gearshifts by turning the shift solenoid valves ON/OFF and switching oil pressure to the valves in the valve body. The TCM calculates the actual transmission gear by comparing the signals from the input speed sensor and the output speed sensor.