KIT-GASKET 1236599 - Caterpillar

System Operation Description:The Analog Sensor Supply provides power to all analog sensors. The Electronic Control Module (ECM) supplies 5.0 0.2 VDC from the ECM connector J1/P1 to each analog sensor connector. The sensor return line connects to the ECM connector J1/P1. The analog sensor supply is output short circuit protected. A short circuit to the battery will not damage the circuit inside the ECM.Note: The Analog Sensors are not protected from overvoltage. A short from the supply line to the + Battery may damage the sensors. If the CID-FMI 262-03 is logged, it is possible that all of the analog sensors have been damaged. Repair the Analog Sensor Supply and check for any "ACTIVE" Sensor Diagnostic Codes in order to determine if a sensor has failed.Note: The Engine Monitoring System can be programmed by dealers and/or customers. Dealers and/or customers can monitor customized warnings, derates, shutdown override setpoints, and delay times using the Caterpillar Electronic Technician (ET). Customized parameters may affect the behavior of the ECM. The behavior of the ECM may vary from the description that is given in this System Operation section. Refer to the diagnostic procedure Troubleshooting, "Engine Monitoring System" in order to determine if there are any parameters that are affecting engine operation.The following list contains a description of the Analog Sensors that are found on the engine.Aftercooler Temperature Sensor - The ECM uses the signal from the sensor to monitor changes in system temperature. The ECM makes adjustments to the system as the engine temperature changes. This allows the engine to operate at optimal performance through a wide range of operating temperatures. The operating range of the sensor is −40 °C to 120 °C (−40 °F to 248 °F).Air Inlet Temperature Sensor - The ECM uses the signal from the sensor to measure inlet air temperature in the air inlet manifold. The sensor provides a nonlinear dc voltage output signal in relation to the temperature that is applied to the sensor. The signal is converted to a digital representation of the voltage. The signal is then compared to a map of sensor voltage to temperature. The operating range of the sensor is −40 °C to 120 °C (−40 °F to 248 °F).Coolant Temperature Sensor - Cold Mode operation improves the engine starting ability. Cold Mode operation helps to control white smoke during cold starts. Cold Mode operation helps to improve warm up time of the engine. In Normal Mode, injection timing is varied as a function of engine speed and load. The process of combustion is improved by controlling the injection timing in Cold Mode. Transient engine response is slower in Cold Mode operation. Cold Mode operation is activated when the engine water temperature is below 60 °C (140 °F). Cold Mode operation will remain active until water temperature rises above 63 °C (145 °F). The engine will operate in Cold Mode and in Normal Mode during operation. The operating range of the sensor is −40 °C to 120 °C (−40 °F