what does transmission speed sensor do
The Vehicle Speed Sensor measures vehicle speed. If it fails or malfunctions the automatic transmission may not operate properly. It may also cause the automatic transmission to go into failsafe mode making it appear that the problem is more severe than it actually is.he Turbine Shaft Sensor measures the input shaft speed of the automatic transmission. The electronic transmission control module uses the information provided by the TSS to determine the amount of torque converter clutch slippage. If it fails it usually produces an automatic transmission fault code.