I got a "reduced engine power" and "service engine soon" message about a year ago. The engine won't rev more than 2,000 rpm. I had the code read and it's the throttle body module. If I switch the ignition to OFF and then to RUN again really quick, it goes away and the car drives just fine. I did some digging around on the Internet and found that 2001-early 2002 S60s have a recall for bad throttle body modules that go into a limp home mode when it's not necessary. A simple SW upgrade fixes it. When I called the dealership and gave them my VIN, they said that my 2002 is a later model that has a different throttle body module than the one in the recall. They want $115 just to check it out and then $900 to replace the throttle body module. The cases I read on the Internet had several people paying for a new throttle body and then the issue coming back within a month. I really don't think it's the throttle body module. I've been driving it like this for almost a year (whenever it goes into limp home mode, I switch OFF and ON really quickly and it's fine.) Anyone have any ideas?

 

more than likely its the throttle body slso called etm they all suffered from this,we use to clean them out and software upgrade made little difference the fault is caused by to much difference in the movement in the 2 thottle throttle positions cos they are made by marelli

 

So i need to disassemble everything, take out the trottle body, and clean it out? UGH!

 

hi dont strip just clean out .........

 

Did just cleaning it out fix it? I have the same problem. Although 2003 Volvo s60. I didn't start noticing the problem till I plugged a 600 watt coffee maker into a max 100 watt lighter plug. Plug still works. Just wondering if I shorted a relay or fuse.