How do you tell if the cam sensor is bad?

To determine if a camshaft position sensor is bad, you can look for symptoms such as rough idling, difficulty starting the engine, or unexpected stalling. Additionally, you can check for diagnostic trouble codes (DTCs) using an OBD-II scanner, which may indicate cam sensor issues if specific codes are present. Physically inspecting the sensor for damage, wear, or poor connections can also help identify problems. If necessary, testing the sensor's voltage and resistance with a multimeter can confirm its functionality.