RH = Right Hand Indicator should say front or rear to help narrow it down.
It is a slow car
ensure all bulbs on bumpers are good
380 indicator switch
you have a burned out bulb. when r/turn is on go to rear and check to see it is also working. the same for left.
How do you replace a front indicator bulb in a Saab 93
Replace the blown bulb in the front or rear of the car. The reason it won't blink is because it is a courtesy warning telling you that you have an inoperative bulb. Check/replace the front and rear right turn signal bulbs and check it again. It should clear up your problems.
by changing the alternator
Best to replace
right front under the dash is the indicator or flasher unit behind the fuesbox
you need to replace the bulb in the front...
Start with replacing the bulb.