Check for shorts between the wires . With key off and the Ohms function on the multi-meter. Hi Rick, to clarify your above suggestion, are you saying check for shorts between the brake pressure sensor connector pins... connecting pin #1 to #2, #1 to #3, #2 to #3? If yes, what would be an expected &...

Thanks for the tip... will try this. I appreciate the input!

Apologies for bringing up an old thread, but I'd very much appreciate some additional insights in the topic and GREATLY appreciate any additional insights into helping me solve this persisting and highly annoying issue. 2004 xc90 here. Besides the wires to the brake pressure sensors, are there other...

Also, you aren't getting nearly a complete drain if you don't find the block drain on back of engine (two on V8, one each for each bank) so the block drains. Hey jimmy57, would you know, by chance, where the coolant block drain is for the 2.5T engine? I've spent probably several hours scouring Goog...