P1782 Volvo 2/4-OD Pressure Switch Circuit

Possible causes

– Low transmission fluid level
– Dirty transmission fluid
– Faulty 2/4-OD Pressure Switch
– 2/4-OD Pressure switch poor electrical connection
– 2/4-OD Pressure switch circuit is open or shorted

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission shift shock

P1782 Volvo Description

The pressure 2/4-OD Pressure Switch is part of the pressure switch of the transmission. The pressure switch are located in the solenoid assembly. The switch provide input information to the Transmission Control Module (TCM). The switch will inform to the TCM is pressure exist in a specified hydraulic circuit. the TCM uses this information to verified that the solenoids are working or not.