2004 VOLVO S60 2.4 L p0785 code shifting/timing solenoid location and id number

Question

my 2004 s60 volvo 2.4 l is showing check engine light glowing and the code given is p0785 which is related according to info to the time/shifting solenoid. Please tell me where on the transmission this solenoid is located and and what id the id number for it and what is the info needed to order it to buy it. Thanks.