Is there an easy way to disable the high pressure sensor to remove it from the equation? 1. Disconnect the wire to the A/C clutch so that it cannot be engaged. 2. Pull the wires on the A/C pressure switch and put a jumper across the two wires. 1/2 of a paper clip makes a good jumper. 3. Tape it so ...

No have not checked much out. seems it could be 1 of two things either Fan switch or high pressure sensor on AC

Hi team my rad fan is now running on high from the second i switch on the car cold... If read it could be a defective part on the fan unit or high pressure switch on AC condenser... My Ac does not seem to be working so could be that.. Is there an easy way to disable the high pressure sensor to remov...

$_59.JPG[/attachment] Found great looking XC70 with a lift and cool upgrades ..i know its a dad car but still looks cool

Thanks but was not going to run relays ?? do i need them ... i suppose the relays are to disable power when the key is off ? Otherwise please remind me why i need them ?

Hiya Volvo tribe I have a few CEM electrical gremlins: fault in Pass seat, no radio, no 12v plugs and no back up sensors. this great site provided the answers as it points to a bad relay in the CEM... :( but seems fixable . See https://www.matthewsvolvosite.com/forums/viewtopic.php?f=9&t=75241 M...

Remember, 1) "people posting failures bias" as well as 2) careless do-it-yourselfers using the wrong fluid PLUS 3) people performing fluid refreshments well into their transmissions' sickness and 4) myths formed back in the early days of automatic units where the gunk actually did help se...

Thanks for all the warm support i may have found the fix from this site..https://www.matthewsvolvosite.com/forums/viewtopic.php?f=9&p=440350#p440350 seems its a CEM relay... One questions to all your wiring hackers.. Instead of changing the CEM why could i not bring hot power from a new source a...

Thanks again... Yea i have to get mine fixed as well im counting on the repair fixes a bunch of things like the back up sensors.... The only confusing part is my radio does have power but zero lights... Kinda wonder if its linked to the Amp in some way under the pass seat which also has no function....

TOOO funny it was on page 2.. ive got the exact same issues in a Xc70 that's new to me... except i have one additional one the parking sensors are also not functional... did yours work ? 2nd part ive checked the hot lead red wire going to the radio and its live ... i suppose there could be an additi...