How on earth do you retrieve diagnotics codes on 1994 JDM Surpa?

[JDM Supgra]

Hi All,

I got a 94 supra Twinturbo and would like to know how to retreive diagnostic codes from the ECU, I don't see an engine light indicator, however, there is some Triangle looking shape light. I tried jumping TE1 and E1 (if I remember correctly), but did not see any light flashing. I believe the code retrieval on JDM suppra might be different, if any one knows how, please share it with me and if you have a description of the fault codes, please share it with me.

Thank you for your time.

Rafi