Date: 18 Oct 2005 08:48:13 -0700 From: "EP" <eric.perduenospaml.com> Subject: ACC Problems
I have a 1992 9000 Turbo which I dearly love. However, two nights ago, the ACC started freaking out. As I was driving back from Seattle in about 52 or so degree weather, the cabin fan kept coming on, staying on for a couple seconds, then turning off...over and over again. The following day, I took my kids to their piano lesson, and when we fired up the car to leave, there was a brif whiff of that dreaded burnt-electrical-circuit-smell. Then yesterday, on a fairly long highway trip, I noted the AC kicking in on low speed despite a 54 degree day. When I got home, I checked for bad fuses, pulled the glove box hoping to find a bad relay and of course found thet there was no such relay for the ACC. I also ran the recalibration which returned zero faults. I noted the the heat would kick in if the ACC was set higher than 82 - lower than that was either nothing or AC. I also noted the the trip computer reported the outside temperature as 94 degrees! On a test drive, that dropped to around 71.I am thinking I have a fulty ACC module, but I don't want to buy an expensive part if I am overlooking something. The burnt circuit smell might be a red herring, but probably not. I note that the outside temperature sensor is behind the front bumper somewhere, but I don't know where exactly. Is it possible that it became dislodged and is now living somewhere near the radiator?