Principle of Operation: MSR

If the vehicle is coasting with a low gear selected, or during a downshift, excessive engine braking could be applied resulting in wheel slip. This would result in vehicle instability. In this situation, the MSR system intervenes and sends a command to the engine management system to cancel decel fuel cut-off and open the throttle valve. Thus engine drag torque is converted into positive engine torque and wheel slip is eliminated. The system is controlled by the ABS control unit and uses the same slip detection principles as the ABS system.