HOSE AS 4262711 - Caterpillar

Illustration 1 g00479560
System Schematic For Sensor Power SupplyThe EMCP II has an 8 DCV sensor supply from the GSC that powers the optional fluid level sensor (engine coolant). The sensor power supply functions whenever power is applied to the GSC. Note: The GSC is usually programmed to treat a fault with the sensor power supply (CID 269) as an alarm fault (P04 = 0). If the GSC is programmed to shut down (P04 = 1) for a fault with the sensor power supply, then the alarm codes key is not needed in order to view the CID FMI. The CID FMI is automatically shown on the upper display.Note: Diagnostic codes are created when the harness connector (40 contact) is disconnected from the GSC during these troubleshooting procedures. Clear these created diagnostic codes after the particular fault is corrected. In a properly operating system, when the harness connector is removed from the GSC, the following diagnostic codes are recorded.
CID 100 FMI 2 pressure sensor (engine oil)
CID 110 FMI 2 temperature sensor (engine coolant)
CID 111 FMI 3 fluid level sensor (engine coolant)
CID 190 FMI 3 speed sensor (engine)
CID 336 FMI 2 switch (engine control)
CID 590 FMI 9 engine ECMProcedureThe following condition is a possible cause of a CID 269 FMI 3.
The voltage of the sensor power supply is less than 7.5 DCV.Begin performing these procedures only when CID