no abs

happy christmas folks
i have a rear weel drive 94 astro 4.2 up here in the great white north, the snow has just arrived and the abs warning light has lit up, i am not much of a mechanic, are there and basic things i can check before i take it to the shop?
many thanks
tony
i have a rear weel drive 94 astro 4.2 up here in the great white north, the snow has just arrived and the abs warning light has lit up, i am not much of a mechanic, are there and basic things i can check before i take it to the shop?
many thanks
tony
