MID 039 - Machine Control Module
CID 3456 - Autonomous Steering Enable Solenoid #1 Return
FMI 04 - Voltage Below Normal
Illustration 1 | g03257116 |
This diagnostic code is active when the Machine Control Module (MCM) has determined the Autonomous Steering Enable Solenoid #1 (Primary EH Steer Pilot SOL [P1]) return voltage is below normal.
Test Step 1. CHECK THE RETURN CIRCUIT OF THE SOLENOID FOR A SHORT TO THE GROUND CIRCUIT
- Turn the keyswitch and the disconnect switch to the OFF position.
- Disconnect the machine harness connector from the solenoid. Disconnect the machine harness connectors J-1 and J-2 from the Input/Output Module (I/O Module).
- At the machine harness I/O Module connector J1, measure the resistance from contact J1-67 (wire A827-OR(Orange)) to all J-1 and J-2 contacts that are connected to +battery.
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 2.
- NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-67 (A827-OR(Orange)) and the circuit that has a low resistance measurement.
Repair: Repair the machine harness or replace the machine harness.
STOP
Test Step 2. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE
- 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.
- Reconnect all harness connectors.
- Turn the disconnect switch and the keyswitch to the ON position.
- Operate the machine.
- Determine if the CID 3456 FMI 04 is active.
Expected Result:
The CID 3456 FMI 04 is active.
Results:
- YES - The CID 3456 FMI 04 is active.
Repair: Repeat this procedure. If the problem remains, replace the solenoid. After the solenoid is replaced, repeat this Test Step again. If the diagnostic code is still active, the I/O Module may be faulty. 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 3456 FMI 04 is not active. The problem 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