It might be modules for the lights and doors. So have a pro scan for codes for those. For the defogger check the fuse and relay for corrosion in fuse box under hood it will be marked on cover. Clean the prongs on relay and use dielectric grease on them. That might fix it other than that because it is intermittent a pro will need to look at it.
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Friday, March 13th, 2015 AT 1:18 PM