Volvo TCU Up for sale is a Working, in excellent condition Volvo TCU. Take out of a 1997 Volvo V90 (same as the S90 / 960). white block inline 6. It is important to check your part number off of your old unit to make sure this is correct for your car. The part number on this unit is P09442492 / T97110219 / 1TEP019792 A faulty TCU can manifest itself as a transmission problem, when it is infact just a controler problem. This unit was from a bulk lot of wrecked cars we got in over several years, I am finally getting around to selling all these off. I have many volvo TCU's listed, if this one is not the correct one for your car, check my other listings. These units now have to be special ordered from most dealers new for big $$ (often over $1000!), and finding a good one second hand is getting to be a real chore. Thanks for looking!