1. Transmission Issue: The transmission is responsible for transferring power from the engine to the wheels. If there is an issue with the transmission, such as a damaged clutch or transmission fluid leak, it can cause the vehicle to not move forward or backward.
2. Driveshaft Problem: The driveshaft connects the transmission to the rear wheels. If the driveshaft is damaged or disconnected, it will prevent the wheels from turning and the vehicle will not move.
3. Faulty Wheel Speed Sensor: Wheel speed sensors monitor the speed of each wheel and send the information to the vehicle's computer. If one or more of the wheel speed sensors is faulty, the vehicle's computer may not be able to determine the speed of the wheels and prevent the vehicle from moving.
4. Brake Issues: If the brakes are engaged or there is a problem with the brake system, it can prevent the vehicle from moving forward or backward.
5. Electronic Control Unit (ECU) Problem: The ECU is the vehicle's computer and is responsible for controlling many of its functions, including transmission shifting. If the ECU is malfunctioning, it can affect the transmission and cause the vehicle to not move.
It's important to have the vehicle inspected by a qualified mechanic to diagnose the exact issue and have it repaired.
