i had something very similar on marladys 1.6 n/a......seemed to flash everytime i came to a junction,scared the s**t out of me cause i thought it was a low oil pressure light or something of that nature...everytime i slowed down to navigate a junction it flashed.......in the end i worked out it only flashes when i turn the indicator on....oh well!!!.....hope yours is as meaningless as marn was owduck