P1782 Buick 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
– 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
– Transmission shift shock
P1782 Buick 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.
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