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

Symptoms

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

P0785 Information for specific makes

P0785 AUDI
P0785 CADILLAC
P0785 CHEVROLET
P0785 GMC
P0785 ISUZU
P0785 SUBARU
P0785 VOLKSWAGEN
P0785 BUICK
P0785 PONTIAC
P0785 SATURN