Having a short in the turn signal wiring can cause gauges to fluctuate. If the battery gauge is fluctuating corrosion on the cables can be a possible cause.
Is this an automatic or manual transmission?
A short in the turn signal wiring can cause the voltage gauge to fluctuate. A loose ground wire can also cause the gauge to fluctuate.
No, they do not have traditional turn signals but have flashing lights.
my turn signals do not work in my 1992 Pontiac Firebird
No, but the turn signal relay has a direct effect on the turn signals.
No, turn signals are required on the vehicle.
Turn signals are definitely preferred. Most drivers don't look for hand signals, but, they do look for turn signals. Some people don't even know how to make correct hand signals while driving.
The turn signals are not programmable.
Required by law (motorcycles manufactured before 1973 are not required to be equipped with turn signals.)
You use your arms out he widow as signals.
If you mean turn signal hand signals, then yes.
hazards and turn signals have separate flashers. replace flasher for turn signals