PLATE 4880838 - Caterpillar

OK - A CID 0566 FMI 07 is NOT showing. No active CID 0566 FMI 07 exists. STOPTest Step 3. CHECK THE SYSTEM VOLTAGE.
With the engine off, measure the system voltage at the battery. Make a note of this measurement. This measurement of the system voltage is used for comparison in future steps of this procedure.Expected Result:For a 24 volt system, the system voltage should be from 24.8 to 29.5 DCV. For a 32 volt system, the system voltage should be from 33.1 to 39.3 DCV.Results:
OK - The system voltage is correct. Proceed to test step 4.
NOT OK - System voltage is NOT correct.Repair: For troubleshooting, see Testing And Adjusting, "CID 168 Electrical System".STOPTest Step 4. CHECK SETPOINT P001.
Check setpoint P001 for proper programming. "0=ETR", "1=ETS". See Systems Operation, "Engine/Generator Setpoint Viewing OP2".Expected Result:Setpoint P001 should be programmed in order to match the type of fuel control solenoid which is used on the generator set. Results:
OK - Setpoint P001 is programmed correctly. Proceed to test step 5.
NOT OK - Setpoint P001 is NOT programmed correctly.Repair: Reprogram setpoint P001. See Systems Operation, "Engine/Generator Programming OP5-0".STOPTest Step 5. CHECK FUSES.
Turn the ECS to OFF/RESET.
Check fuses "F2" and "F10" on the relay module.Expected Result:None of the fuses are open.Results:
OK - None of the fuses are open. Proceed to test step 6.
NOT OK - One or more of the fuses are open. Proceed to test step 7.Test Step 6. CHECK VOLTAGE AT THE RELAY MODULE.
Fuse "F4" remains removed from the relay module.
Prepare to measure the voltage from RM-15 to the "B-" terminal of the relay module.
Turn the ECS to OFF/RESET. Turn the ECS to START.
At the relay module, measure the voltage from RM-15 to the "B-" terminal.Expected Result:The voltage should be 2.0 DCV of the system voltage that was previously measured in Step 3.A.Results:
OK - The voltage is 2.0 DCV of the system voltage that was previously measured in Step 3.A. There is an open circuit between RM-15 of the relay module and the fuel control solenoid.Repair: Repair the circuit. See the preceding System Schematic.STOP
NOT OK - The system voltage is lower than the voltage that was previously measured in Step 3.A. Proceed to test step 8.Test Step 7. TROUBLESHOOT THE BLOWN FUSE.This test step continues troubleshooting from test step 7. See the preceding System Schematics. Also, see Testing And Adjusting, "Schematics & Wiring Diagrams".
The ECS remains in the OFF/RESET position.
Remove the fuse that is blown.
If the blown fuse is "F2", measure the resistance from RM-15 of the relay module to battery negative ("B-").
If the blown fuse is "F10", measure the resistance from RM-39 of the relay module to battery negative ("B-").Expected Result:For a fuse that is blowing, the circuit resistance should be less than 3 ohms.Note: On some ETR fuel systems with a dual coil fuel control solenoid, the correct normal resistance can measure less than 1 ohm.Results:
OK - The resistance is greater than 3 ohms and the fuse is no longer blowing. Repair: Carefully check ALL wires that