Go to the link below and read through the entire post. Directions on how to repair your wiring harness or figure out if that is it...the description below is for a bad taillight, but all the wires run through the same harness so it is the same for everything...
2013 Subaru Outback - charcoal Grey, Eyesight Collision Avoidance 25k
2007 XC70, Barents Blue, Charcoal Leather 130k
2000 V70XC Silver, Charcoal, 160k - GONE!
2001 Saab 9-5, Grey, Charcoal 160k
1978 Bitchin' Chevrolet Z28 Camaro - NEW pending install - 383ci SB Dyno'd at 452HP 462FT/LBs Torque