Traction Control Switch: Description and Operation

TRACTION CONTROL SYSTEM SWITCH (TCSS)
This switch signals the CAB to either turn ON or OFF the TCS. The driver can toggle the TCSS, which receives 12 volts from the D (+) Relay Output circuit. Depending on the position of the TCSS, open or closed, the CAB receives the TCSS state voltage on the TCS Switch Sense circuit. When 12 volts are applied to the TCS Switch Sense circuit, the TCS is OFF. When no voltage is present, the TCS is ON.