'04 TL is experiencing strange, intermittent electrical issues such as turn signals not working, outside temp guage not showing anything, dash brightness going from bright to dim, hand free link not working, keyless entry would unlock car but wouldn't flash lights. Any ideas would be greatly appreciated.

 

PS - just to clarify, then everything just starts working properly again. It's off and on.

 

with all those different circuits screwing up Im guessing a lead on the battery is loose, or the chasis ground from the battery. Make sure theyre all tight.

 

I am having this same exact problem, just started today. I have an 05 TL. Dunno wtf is going on with this pos car, but I've lost all respect for Acura when a car like this has this magnitude of failure. I'm already dealing with my driver's side actuator not working. I can't even drive this car now since it appears my rear defrost doesn't work either.

Things not working:
Fog Lights will not work.
Dash headlight indicator is out, but headlights turn on.
TURN SIGNALS DO NOT WORK.
Outside Temp Gauge is out.
Windshield wipers only work on max.
Gauges do not toggle between MAX BRIGHTNESS and normal brightness when I turn on the headlights - almost like the car doesn't know the lights are on.

This is complete BS, and shouldn't be happening.

Probably are other things not working, but that's the big stuff I've noticed thus far.

 

Just discovered I cannot open my trunk either because my key fobs don't work anymore. I can't even open the rear doors of the car at this point without climbing back in there.