Torque Management

Traction control is simultaneously controlled by the Powertrain Control Module (PCM) in the event that applying the brakes alone does not provide the necessary traction. In this case, the PCM receives a Torque Request signal from the EBTCM requesting the desired torque level. The PCM will selectively disable fuel to certain cylinders (up to a maximum of 5) to achieve this reduction. The timing of this action is controlled by the EBTCM, with the following constraints:
1. The PCM will not allow traction control fuel shutoff if:
- Engine coolant temperature is less than -40°C (40°F).
- Coolant temperature greater than or equal to 131°C (204°F).
- Low coolant level is detected.
2. Cylinders can be disabled if the engine speed is greater than or equal to 600 rpm.