HARNESS ASSEMBLY-SENSOR 2426229 - Caterpillar

Illustration 1 g00840583
Schematic of the Solenoid (oil flow) in the Work Tool Control ValveThis diagnostic code is associated with the Solenoid (oil flow) in the work tool control valve. The FMI 05 means that the machine ECM has determined that the current of the solenoid is below normal. The possible causes of this diagnostic code are listed below:
The energize circuit of the solenoid is open.
The return circuit of the solenoid is open.
The solenoid has failed.
The machine ECM has failed. This 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 diagnostic code of CID 1180 FMI 05 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:When the Auxiliary Flow Solenoid (number 1) is an open circuit, no flow is allowed to the tool. The tool will be disabled. The machine ECM will not take any action when this diagnostic code is detected. Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Disconnect the solenoid with the active diagnostic code from the machine harness.
At the machine harness connector for the solenoid, place a jumper wire from contact 1 (wire M745-BU) to contact 2 (wire H803-BU).
Observe the status of the CID 1180 FMI 05.Expected Result:The CID 1180 FMI 05 remains active. The FMI has not changed and the "05" is still active.