SEAL AS 2774196 - Caterpillar

Illustration 1 g01256388
Connections of the blade left lower solenoidThis diagnostic code is associated with the blade left lower solenoid. The FMI 06 means that the ECM has determined that the current for the solenoid is above normal. The ECM uses a PWM signal in order to control the solenoid. The ECM will vary the electrical current of the PWM signal in order to provide proportional control of the solenoid.Some possible causes of this diagnostic code are listed:
The energize circuit of the solenoid is shorted to ground.
The solenoid has failed.
The ECM has failed. This condition is unlikely. 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. Inspect the connections for the following:
Connections are clean.
Connections are secure.
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. Verify that the CID 2162 FMI 06 diagnostic code is active before performing this procedure.Note: The resistance of the solenoid coil should be 8.7 .4 ohms at 25 °C (77.0 °F).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 CID 2162 FMI 06 changes to CID 2162 FMI 05 when the solenoid is disconnected.Results:
YES - CID 2162 FMI 06 changes to CID 2162 FMI 05 when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - CID 2162 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 ECM connectors J1 of the machine harness and J2 from the ECM.
At the ECM connectors of the machine harness, measure the resistance from the signal contact J1-61 (wire R901-GY) to frame ground. Measure the resistance from the signal contact J1-61 (wire R901-GY) to all of the other contacts that are used in the ECM connectors.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - One or more of the resistance measurements is less than 5000 ohms. There is a short in the machine harness. The short is between wire R901-GY 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