dash light in a 93 rs

hi i was just wondering if someone could tell me what the light beside the right indicator is in my 93 rs legacy. i live in australia and own a japanese import so my handbook is in japanese and apparently the australian liberty does not have this warning light.

i am having some problems with my car speradicly running ruff and at which point if the car is underload i.e traveling up a hill this light will come on. the strange thing is though that the check engine light will not come on and there are no fault codes.

anyway i would really appreciate any help

can you describe what the light looks like?