Hello, I have a 2006 XC90 D5 with 150000 miles, it's lost power and has two fault codes P0069 and P2227 related to absolute pressure and Barometric pressure
I have measured the pins on the absolute sensor (front right by the side of the radiator) and have 1.8V 5V 2.1V 0V, however I don't know what they should be, am assuming that the 1.8V relates to the pressure...
I an also unable to locate the Barometric pressure sensor, anyone know where it is and what its values should be ?

I would welcome any suggestions as to how to proceed with this problem....

Many Thanks
Richard

 

Google for the MAP sensor(s) location for your model. Not sure about the D5 but some models have two...

 

Hello, So I have today replaced the Map sensor and cleared the fault code, however I still get the message Engine service required (now no fault codes listed) and the car still had no power, am now totally lost as I have no code to work with.... pondering on what to try next...
Have cleared all codes a couple times and restarted the car several times no change.

 

some of the codes are "long term" meaning you may need to put some miles on the car for the code to get retriggered. Something else to try is to have a Volvo shop (ie one with a VIDA system capable of reading all the proprietary codes and data streams) to do a proper scan. It may be as simple as your existing OBD2 reader doesn't support all code sets and proprieatary codes.