2003 Cadillac CTS

2003 Cadillac CTS Two Wheel Drive Automatic 100000 miles

I own a 2003 Cadillac CTS and I'm getting Diagnostic Error Codes:

1. EBC: C1225
2. ECM: P0318

What do these codes mean and what do I need to do/ what parts do I need to fix it?

Also, I checked the codes because the ABS and Traction Control lights came on on my dash.

Thanks