- Neutral safety switch: The neutral safety switch is a device that prevents the car from starting if the transmission is not in neutral or park. If the neutral safety switch is faulty, it can prevent the car from starting, even if the transmission is in neutral.
- Transmission range sensor: The transmission range sensor tells the car's computer what gear the transmission is in. If the transmission range sensor is faulty, it can cause the car to think that the transmission is not in neutral, even if it is. This can prevent the car from starting or cause it to shut off when you put it in reverse.
- Wiring issues: Wiring issues can also cause the car to shut off when you put it in reverse. Check the wiring harness that connects the transmission to the car's computer. Make sure that the wires are not damaged or loose.
- Brake lights: If your brake light switch is faulty, the car may not shift out of Park to start. Check your brake lights to see if they are working. Also check the brake light fuses to make sure that they are not blown.
- Battery: If the battery is old, weak, or poorly charged, it could prevent the starter from turning over. Make sure that the battery is properly charged. If you don't drive the car often, you may need to use a battery charger to keep it charged.
