Hello im having a problem my service engine light , trac off, anti lock and brake lights are on. when i checked the code it said c1286 brk light warning, c1246 rear channel will not move what can be causing this?

It is important that you make your post as specific as possible. Please include the year of the vehicle, model, engine size, transmission type, mileage and any other information that may be helpful in trying to diagnose the problem. The more information you provide the easier it is for other members to help you.

Its a 98 buick regal gs with 115,000 miles on it v6 supercharged

What brand scan tool was used to retrieve these chassis/ABS codes?

The c1286 DTC comes on by default when the electronic brake and traction control module (EBTCM) senses a fault and then turns on the BRAKE warning and ABS lights.

The c1246 DTC indicates the rear ABS channel is not moving. Using a GM Tech 2 scan tool you can pinpoint which ABS component may be causing your issue. In the meantime the two main modules that could cause your issue is the EBTCM module or the ABS modulator/motorpack assembly, electrical connectors or wiring.

the scan tool i used is the Genisys OTC SPX i really dont know too much about it. my father brought it from his job but he really dosnt use it there son i will try to go deeper with the scan..