DUCT AS 3821355 - Caterpillar

Illustration 1 g01624767
Schematic of the "Bowl Down" solenoid
The CID 1276 diagnostic code is associated with the "Bowl Down" solenoid. The solenoid is a part of the towed scraper. The FMI 06 diagnostic code means that the ECM has determined that there is a short to ground in the solenoid circuit.The possible causes of this diagnostic code are listed below:
The circuit that energizes the solenoid is shorted to ground.
The solenoid has failed.
The ECM has failed. This condition is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the CID 1276 FMI 06 diagnostic code is active before performing this procedure.Note: Use a digital multimeter for the measurements in this procedure.Test Step 1. CHECK THE SOLENOID
Turn the disconnect switch and the key start switch to the ON position. DO NOT start the engine.
Observe the status of the CID 1276 FMI 06 diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:The FMI 06 changes to FMI 05 when the solenoid is disconnected.Results:
YES - The FMI 06 changes to FMI 05 when the solenoid is disconnected. The circuit is correct. The solenoid has failed.Repair: Repeat this test "CHECK THE SOLENOID" to verify the solenoid failure. Replace the solenoid.STOP
NO - The CID 1276 FMI 06 remains active. Proceed to test step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND
Turn the key start switch and the disconnect switch to the OFF position.
The solenoid remains disconnected from the machine harness.
Disconnect the machine harness connectors from the ECM.
At the machine harness connector, measure the resistance from the signal contact J1-59 (wire J914-PU(Purple)) to all contacts that are used in the machine harness connectors for the ECM. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance is greater than 5000 ohms. The machine harness is correct. Proceed to test step 3.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-59 (wire J914-PU(Purple)) and the circuit with the low resistance measurement.Repair: Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK THE STATUS OF THE DIAGNOSTIC CODE
Inspect the harness connectors and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of CID 1276 FMI 06 diagnostic code. Expected Result:The CID 1276 FMI 06 diagnostic code is not active.Results:
OK - The CID 1276 FMI 06 diagnostic code is no longer active. The diagnostic code does not exist at this time. The initial diagnostic code may have been caused by a poor electrical connection that was corrected when a harness connector was disconnected and reconnected.Repair: Resume normal machine operation.STOP
NOT OK - The CID 1276 FMI 06 diagnostic code is active. The problem has not been corrected.Repair: With Caterpillar Electronic Technician