Service Air Bag Light On Yukon Xl

[oscare7022]

I have a 2004 Yukon XL that has given me problems with the service air bag light coming on and off. About 2 or 3 years ago I had it repaired at the dealer by replacing the electrical harness on the driver side under the floor mat. That worked for about a year or slightly more. I removed the side plastic panel and wiggle the wires and the light goes off for a few days and then it comes back on. I have done this several times. I have probably a bad connection on one of the wires or a bad solder on one of the wires when they were replace. I need a schemetic to show me what wires go to the air bag or what color wires am I looking for to check the solder done by the tech. I don't want to take it back to the dealer and spent another $220 or more dollars when if I could get a schemetic I could do it myself.

Any help is greatly appreciated.

Oscar

[gmtech4]

spend 27 bucks and buy an alldata account ,it lasts a yr,all the schematics you need.

 

you also need to scan it for a code and then go in and follow diagnostic tree