Detail: 2000 Blazer. No power to the orange wire for either front seat. Which fuse or relay controls the frt power seats? Its not listed on the fuse box covers and I do not have an owners manual.
Solution: The orange wire is the power wire for both seats.It gets its power from the power seat circuit braker (20 amp) located at the body relay block.It is located behind left side of dash near fuse block. Remove circuit braker and check for power in body relay cavity that you pulled the relay out of if power is on one side change circuit braker and if no power on either side then you have a bad main fuse near battery or under hood in main fuse block. Joe ASE Master Tech , Hi, a 6ya Mechanic can help you resolve that issue over the phone in a minute or two. Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!