The key slides into the lock cylinder, and the lock cylinder is inserted into the ignition switch assembly. To get to the switch and connector, the cover right below the steering wheel has to be removed. There's three or four torx screws, (T15 or 20 as I recall), that must be removed from the bottom. Two or three of them hold the top and bottom halves together, and one holds the bottom to the column.
Once the covers are removed, you'll see the 7-pin flat connector on the lower left side of the switch assembly. One section of the switch is for the starter circuit. A different section is for all the stuff that runs in the "run" and "accessory" positions, like the radio. The third section is for things that only turn on in the "run" position. That includes the heater fan, power windows and possibly the wipers. It's that section that commonly overheats, especially for people who run the heater fan on the highest settings a lot. That draws a real lot of current and that's what is hard on the switch contacts and connector terminals.
Saturday, April 18th, 2015 AT 12:35 AM