I have often mentioned why, in my opinion, it is incorrect to translate rang rig as "self-awareness" or "intrinsic awareness". Beyond the fact that rig pa means "knowledge", and is the antonym of ma rig pa ignorance, there is much confusion regarding the compound "rang rig".
Many people incorrectly assume that rang rig is a contraction of "rang gis rig pa" i.e. self-knowing, as indicated by the instrumental particle gis. The compound is in fact a contraction of rang gi rig pa which we can understand from the genetive particle gi as we can clearly see in the comment on the following line of thesgra thal gyur: /rang rig rtog pa kun 'bral bas/ [Adzom Chogar edition].
Further proof of the above reading may by found in the rendering of this citation in the recently mentioned Aural Lineage, dgongs pa zang thal, vol 4, pg. 335, Simla edition] which gives a slightly different form of the citation: /rang gi rig pa kun grol bas/ i.e. "Since one's vidyā is free from all..."