450E Backhoe Loader Machine Electronic Control System MID 039 - CID 2245 - FMI 06 Caterpillar

Conditions Which Generate This Code:

Illustration 1	g01216667
Schematic of the Hoe Auxiliary Valve #2 Port B Solenoid

This diagnostic code is associated with the Hoe Auxiliary Valve #2 Port B Solenoid. The FMI 06 means that the ECM has determined that there is a short to ground in the circuit.

The possible causes of this diagnostic code are listed:

• The energize circuit of the solenoid is shorted to ground.

• The solenoid has failed.

• The ECM may have failed.

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 2245 FMI 06 is active before performing this procedure.

Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.

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, secure, and 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.

System Response:

• The system will not initialize after power is cycled.

• The hydraulic functions for extend, retract, reverse, and forward are lost after power is cycled.

• There will be no effect to the systems after powerup until the next reset of the valve ECM.

Test Step 1. CHECK THE SOLENOID.

1. Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.

2. Observe the status of the diagnostic code.

3. Disconnect the solenoid with the active diagnostic code from the machine harness.

Expected Result:

CID 2245 FMI 06 changes to CID 2245 FMI 05 when the solenoid is disconnected.

Results:

• YES - CID 2245 FMI 06 changes to CID 2245 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 2245 FMI 06 remains active. Proceed to Test Step 2.

Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND.

1. Turn the key start switch and the disconnect switch to the OFF position.

2. The solenoid remains disconnected from the machine harness.

3. Disconnect the machine harness connectors from the e-stick rr aux valve stack.

4. At the machine harness connector, measure the resistance from the signal contact 7 (wire K764-WH) to all contacts that are used in the machine harness connectors for the machine ECM.

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 - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between contact 7 (wire K764-WH) and the circuit with the low resistance measurement.

  Repair: Repair the machine harness or replace the machine harness.

  STOP

Test Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.

1. Inspect the harness connectors and clean the contacts of the harness connectors.

2. Reconnect all harness connectors.

3. Turn the disconnect switch and the key start switch to the ON position.

4. Operate the machine.

5. Check the status of the CID 2245 FMI 06.

Expected Result:

The CID 2245 FMI 06 is active.

Results:

• YES - The CID 2245 FMI 06 is active. The diagnostic code has not been corrected. The ECM may have failed.

  Repair: Prior to replacing an ECM, always contact your dealership Technical Communicator for possible consultation with AVSpare. This consultation may greatly reduce repair time. If the ECM must be replaced, refer to Testing and Adjusting, "Electronic Control Module (ECM) - Replace".

  STOP

• NO - The CID 2245 FMI 06 is not active. The diagnostic code does not exist at this time.

  Repair: The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness. Resume normal machine operation.

  STOP