The message center says that my tailgate is open. Private volvo mechanic says that the left tailgate wiring harness is bad, but needs significant diagnostics to figure it out. Now the wierd stuff: alarm, latch and locks work fine. rear light turns on and off when hatch is opened and closed, brake li...

My wife's 2001 V70 XC is bone stock and has about 70K miles. The annually occurring Check Engine Light is on with codes P0236 and P0237. I found a post on volvospeed that says this is the MAP Sensor, but the post refers to an older 99 model http://www.volvospeed.com/vs_forum/lofiversion/index.php/t2...