VALVE GP-SHUTTLE 6E3373 - Caterpillar

Illustration 1 g00681895
System Schematic For Electronic Governor Relay (EGR)The GSC+ uses the electronic governor relay (EGR) to activate the close-for-rated speed contacts of the programmable electronic engine control (PEEC). When this occurs, the PEEC will increase the engine speed from the idle speed to the rated speed. The output for the electronic governor relay is rated at 1 amp. The EGR is located within the relay module. The GSC+ activates the EGR when the engine oil pressure is greater than the setpoint for low oil pressure shutdown at idle speed ("P014"). Also, "K1" will be present on the lower display. The relay contacts of the EGR will close. This action will send a command to the PEEC that will advance the idle to the rated engine speed.The GSC+ does not activate the EGR when the engine oil pressure is less than the setpoint for low oil pressure shutdown at idle speed ("P014"). Also, "K1" is not present on the lower display. The relay contacts of the EGR will open. This action will send a command to the PEEC that will advance the idle to the rated engine speed.Note: Whenever the GSC+ activates or the GSC+ attempts to activate the EGR, "K1" is shown on the lower display. When the EGR is not activated, "K1" is not shown.The possible causes of this diagnostic code are listed:
The EGR has an open coil or a shorted coil. There is not a system response to the CID 0441 FMI 12 because there is not a factory connection to the EGR.The GSC+ treats a CID 0441 FMI 12 as an alarm fault. Active alarm faults are shown on the display when the alarm codes key is pressed. The active alarm faults will be displayed when the ECS switch is placed in any position except the OFF/RESET position. Clear the diagnostic code from the fault log after troubleshooting is completed.This troubleshooting procedure is for an active CID 0441 FMI 12 or the troubleshooting procedure is for an inactive CID 0441 FMI 12. Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE.
Turn the ECS to the OFF/RESET position and then turn the ECS to the STOP position.
Press the "Alarm Codes" key.
Observe the upper display. Check that the CID 0441 FMI 12 is active.
If the diagnostic code is not active, enter the Service Mode. View the fault log for a OP1. Check that the diagnostic code is inactive.Expected Result:A CID 0441 FMI 12 is displayed as an active diagnostic code or CID 0441 FMI 12 is displayed as an inactive diagnostic code.Results:
OK - The CID 0441 FMI 12 is active or the CID 0441 FMI 12 is inactive. Proceed to test step 2.
NOT OK - The CID 0441 FMI 12 has not occurred. The diagnostic code is not active and the diagnostic code is not inactive. Stop.Test Step 2. CHECK THE INTERNAL CABLE OF THE RELAY MODULE.Note: Only open the relay module in a dry environment. If the inspection and repair takes more than approximately twenty