Greetings! I've recently noticed that my cruise control and exhaust brake on my Cat 3126 are not working. I have already located the wiring schematic in Coach Assist, but prior to starting any troubleshooting, I decided to start with a physical inspection of the exhaust brake and solenoid. The brake solenoid was located between the firewall and the rear of the engine, but both of the wires were unhooked, with no indication of where they were connected. The schematic is difficult to read, does anyone know where the two wires from the solenoid connect to the coach? Thank you in advance for any assistance..