A/T OUTPUT(RPM)____________________________________ (range 0 to maximum RPM) Indicates transmission output shaft speed (OSS) based on the OSS sensor. The OSS sensor is on inductive pickup. A/T SWITCH ______________________________________________ (range P/N NOT P/N) Indicates the Park/Neutral Position (PNP) switch status, which indicates whether an automatic transmission is in park or neutral, or in one of the drive ranges. ATF TEMPERATURE(°C) _________________________________________ (range variable) Indicates the temperature of the transmission fluid based on the transmission fluid temperature (TFT) sensor. It is monitored to prevent the transmission from overheating. It is located on the valve body within the solenoid wiring harness.