The 4L60E transmission is a popular automatic transmission used in many General Motors vehicles. A critical component of this transmission system is the neutral safety switch, also known as the transmission range sensor (TRS). This switch performs multiple functions, including indicating the transmission’s current gear position to the vehicle’s computer and, most importantly, preventing the engine from starting unless the transmission is in Park or Neutral. A properly functioning neutral safety switch is vital for both safety and reliable vehicle operation. Understanding the 4L60e neutral safety switch wiring diagram is essential for diagnosing and repairing any issues related to the switch or its associated wiring.