The turn signal bulbs would light but not flash. Looked all around for the turn signal flasher plugin but it does not exist. Turns out that it is a relay built into an $800 nonrepairable Lighting Control Module box (LCM). Idiots! Do they not think that turn signal flashing contacts wear out!
Thank god for the net. Found instructions on how to cut the white-red and blue wires to the LCM and jumper them with a turn signal flasher plugin. Two hours of head time under the dash and a $7 flasher and things are fine again.
Building cars is about making money, not a good product.
Expensive parts are lucrative for manufacturers. Even V-belts of odd lengths. Crap.
There was a time when manufacturers made products that simply worked and parts were interchangeable between models.
No longer. It is just a scam now.