I have a 94 Buick Park Avenue. Lately, when I turn on my right blinker
without the headlights on, the car makes an usual clicking noise and the
clock and the temperature screen both flash and the rear blinker blinks
very fast and dim. The front right blinker does nothing. When the
headlights are on, there is no clicking noise and the blinker does
nothing. Also, the check engine light is on for no apparent reason. What
is going on? Is it a circuit or a ground problem? How do I fix it?