Traction Control System (TCS)
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
When drive wheel slip is noted while the brake is not applied, the electronic brake control module (EBCM) will enter traction control mode. The traction control system (TCS) controls vehicle traction by applying brakes and limiting engine torque to the drive wheels. The EBCM performs the fallowing TCS operations:
- The EBCM requests the powertrain control module (PCM) to reduce the amount of torque to the drive wheels via serial data messages.
- The PCM reduces torque to the drive wheels by retarding spark timing and throttle actuator control (TAC).
- The PCM reports the amount torque delivered to the drive wheels via serial data messages.
- The EBCM applies brake pressure to the slipping wheel in order to transfer torque to the gripping wheel.