Torque request during engine braking
WARNING: This page is about a different car, the 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
During engine braking, it is possible that the speed of the front wheels becomes lower than the speed of the rear wheels. If the vehicle speed exceeds 25 km/h and the engine torque is below -50 Nm, the TC/ABS control module will request increased torque to maintain directional stability.
There are two levels for the request for increased torque
- If the speed of the front wheels is between 2 and 5 km/h lower than the rear wheels, the TC/ABS control module will request an engine torque of -10 Nm.
- If the speed of the front wheels is more than 5 km/h lower than the rear wheels, the TC/ABS control module will request an engine torque of +10 Nm.
Higher torque is not requested at speeds below 25 km/h.