Cat® Command For Hauling Caterpillar

MID 039 - Machine Control Module

CID 3454 - Autonomous Steering Enable Solenoid #1

FMI 06 - Current Above Normal

Illustration 1	g03257116

Test Step 1. CHECK THE SOLENOID

1. Turn the disconnect switch and the keyswitch 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 3454 FMI 06 changes to CID 3454 FMI 05 when the solenoid is disconnected.

Results:

• YES - CID 3454 FMI 06 changes to CID 3454 FMI 05 when the solenoid is disconnected. The circuit is correct.

  Repair: The solenoid has failed. Repeat this Test Step, "CHECK THE SOLENOID", in order to verify the solenoid failure. Replace the solenoid.

  STOP

• NO - CID 3454 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 keyswitch and the disconnect switch to the OFF position.

2. The solenoid remains disconnected from the machine harness.

3. Disconnect the machine harness Input/Output Module (I/O Module) connectors J1 and J2 from the I/O Module.

4. At the machine harness ECM connectors, measure the resistance from the signal contact J1-67 (wire A827-OR(Orange)) to frame ground or to a ground contact on connectors J1 or J2.

Expected Result:

The resistance measurement is greater than 5000 ohms.

Results:

• OK - The resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.

• NOT OK - The resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-67 (wire A827-OR(Orange)) and one of the grounded wires in the machine harness.

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

  STOP

Test Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS

1. The keyswitch and the disconnect switch remain in the OFF position.

2. Inspect the contacts of the harness connectors that are used in the solenoid circuit. Ensure that the contacts are secure. Clean all of the contacts in the harness connectors.

3. Reconnect all harness connectors.

4. Turn the disconnect switch and the keyswitch to the ON position.

5. Operate the machine.

6. Check the status of the CID 3454 FMI 06 code.

Expected Result:

The CID 3454 FMI 06 code is still active.

Results:

• YES - The CID 3454 FMI 06 code is still active. The diagnostic code has not been corrected. The I/O Module may have failed.

  Repair: It is unlikely that the I/O Module has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the I/O Module. Refer to Testing and Adjusting, KENR8394, "Electronic Control Module (ECM) - Replace".

  STOP

• NO - The CID 3454 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 connectors that was disconnected and reconnected. Resume normal machine operation.

  STOP