Quote:
Originally Posted by mr.fabulous
Do all cars suffering from this exhibit the same water problem? Is that what this really is (a leak)?
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All cars seem to allow a small amount of water into the HVAC through the plenum, unless of course one lives in a rain free environment and does not wash their car. The root cause of the wiring problem is likely that water is getting into the blower motor (from plenum), causing a higher current draw (but not enough to fail the resistor), which overheats the insulation and peels it back. The exposed copper (with current) then has contact with humidity and develops this lovely green galvanic corrosion seen in the pictures. One should replace the motor, resistor, and repair the harness.
Looks like it is time for me to take a look at my own car and see if I have this condition :/ ...