Circuit Description

The EBTCM pulls the traction control delivered torque circuit to about 12 volts. The PCM Pulse Width Modulates (PWM) the circuit to ground creating a signal that represents the percentage of engine torque output. EBTCM uses this PWM signal for traction control. The PCM provides the ground via an internal device called a driver. The driver supplied ground for the component being controlled. Each driver has a fault line monitored by the PCM. If fault detection senses a voltage other than what is expected, DTC will set.