When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Sounds like he bubbaed the wiring in the front bumper. Look for splices at each corner or behind the drivers side head light. C3 vettes are know to have wires break at that point and he may have fixed it wrong. The easiest fix would be to replace that front harness.