Voymom said:
Just a thought. I would think if the DDM was going bad, it would be more than just 1 switch acting oddly.
That would depend on what was actually going bad. Some modules have died from water getting in them and
corroding traces. Some have had the plastic buttons wear out/break on the windows used most frequently.
Those failures can cause one window to fail (or one function), and leave others working. Easiest way to check that
without actually tearing the module apart is to swap passenger's side and driver's side.
Also, since it is apparently temperature aggravated, small electrical trace cracks, solder joints, or even metal
to metal contacts within connectors can be affected by expansion/contraction, so it could still be inside the
door module and only affect one function, or could be wiring.
Hopefully we can get a bit more detail in order to narrow down the culprit.
Cheers-
Chris