TCS (Traction Control System) Features

When a drive wheel loses traction on a slippery road surface and starts to spin, the VSA modulator-control unit applies brake pressure to the spinning wheel, and sends an engine torque control request to the ECM/PCM to slow the spinning wheel, and keep traction.

Without SH-AWD 

Fig 1: TCS (Traction Control System) Features - Without SH-AWD

Courtesy of AMERICAN HONDA MOTOR CO., INC.

With SH-AWD 

Fig 2: TCS (Traction Control System) Features - With SH-AWD

Courtesy of AMERICAN HONDA MOTOR CO., INC.