Look at the possibles, and make it as basic as possible. Could the DIM be shorted, possible but not probable. Could the multifunction switch itself be shorted, possible but not probable. Could the license plate applique mounting bolts be anchoring the harness to the deck lid creating a direct short to ground, probable and possible. Remove the trunk lining, loosen the nuts for the applique, and inspect the wiring. Also check the pivot area, where the harness runs from the rear deck lid to the vehicle. It could be pinched in the hinge area. Looking at the schematic, if the DIMR fuse is #13, you can isolate all three circuit at the connector under the fuse block. It shows you in the upper RH corner of the schematic, that connector C! Is a 50 or 60(hard to read) pin gray connector body. From there, if you can find the two terminals(B4 single yellow, and A7 double yellow), you can do some diagnosing. Check the single wire terminal for a short to ground, and based on the result, check the double side. Now if you find a short on the double wire terminal, cut one away, and see which of the two is shorted to ground. If the fuse is continuously blowing, it should not be that hard to find. If it is intermittent in nature, you could cut all three wires, install inline fuse holders in each, and equip the fuse holders with either 7.5 amp, or even 5 amp fuses. When you have a problem, the open fuse will indicate which circuit to devote your effort to.
Thursday, December 22nd, 2011 AT 5:53 AM