KIT- 4669273 - Caterpillar

Illustration 1 g02137837
Connections of the right steering pump solenoid
This diagnostic code is associated with the right steering pump solenoid. The circuit is connected to a PWM driver of the Power Train ECM. The FMI 06 means that the ECM has determined that the current of the solenoid circuit is above normal.The possible causes of this diagnostic code are listed below:
The energize circuit of the solenoid is shorted to a ground source.
The solenoid has failed.
The ECM has failed. An ECM failure is unlikely.Note: Before performing this procedure, inspect the harness connectors that are involved in the circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, that all connections are secure and that all connections are in good condition. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure. 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 0726 - FMI 06 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 diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:The active FMI 06 diagnostic code changes to an FMI 05 diagnostic code when the solenoid is disconnected.Results:
YES - The active FMI 06 diagnostic code changes to an FMI 05 diagnostic code when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Replace the solenoid. Verify that the new solenoid corrects the problem.STOP
NO - The FMI 06 remains active when the solenoid is disconnected. The solenoid is not causing the problem. Proceed to Test Step 2.Test Step 2. Check the energize circuit of the solenoid for a short to groundThe solenoid remains disconnected from the machine harness.
Turn the key start switch and the disconnect switch to the OFF position. Do not start the engine.
Disconnect the machine harness connectors from the ECM.
At the machine harness connectors for the ECM, measure the resistance from the contact J1-68 wire (F789-YL(Yellow)) to a clean source of frame ground. Measure the resistance from contact J1-68 wire (F789-YL(Yellow)) to all of the other contacts that are used in the J1 and J2 machine harness connectors. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
YES - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NO - One or more of the resistance measurements is less than 5000 ohms. There is a short in the machine harness.Repair: The short is between wire (F789-YL(Yellow)) and the circuit with the low resistance measurement. Refer to Electrical System Schematic, KENR8916. Examine all of the connectors that are in