Solenoid Valve - Test
The following is a list of codes that are associated with the solenoid valves of the machine.
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| Machine ECM (MID 39) | ||
|---|---|---|
| DTC | Code Description | System Response |
| 358-3 | Implement Pilot Pressure Supply Solenoid : Voltage Above Normal | All implement lift and tilt commands are allowed to run at reduced performance. Third and forth commands are allowed to run without being reduced. |
| 358-5 | Implement Pilot Pressure Supply Solenoid : Current Below Normal | All implement commands are inhibited. |
| 358-6 | Implement Pilot Pressure Supply Solenoid : Current Above Normal | All implement commands are inhibited. |
| 451-3 | Grapple Rotate CW Solenoid : Voltage Above Normal | Grapple CW Function will not operate. |
| 451-5 | Grapple Rotate CW Solenoid : Current Below Normal | Grapple CW Function will not operate. |
| 451-6 | Grapple Rotate CW Solenoid : Current Above Normal | Grapple CW Function will not operate. |
| 452-3 | Grapple Rotate CCW Solenoid : Voltage Above Normal | Grapple CCW Function will not operate. |
| 452-5 | Grapple Rotate CCW Solenoid : Current Below Normal | Grapple CCW Function will not operate. |
| 452-6 | Grapple Rotate CCW Solenoid : Current Above Normal | Grapple CCW Function will not operate. |
| 453-3 | Tong Open Solenoid : Voltage Above Normal | Tong Open Function will not operate. |
| 453-5 | Tong Open Solenoid : Current Below Normal | Tong Open Function will not operate. |
| 453-6 | Tong Open Solenoid : Current Above Normal | Tong Open Function will not operate. |
| 454-3 | Tong Close Solenoid : Voltage Above Normal | Tong Close Function will not operate. |
| 454-5 | Tong Close Solenoid : Current Below Normal | Tong Close Function will not operate. |
| 454-6 | Tong Close Solenoid : Current Below Normal | Tong Close Function will not operate. |
| 583–3 | Boom Raise Solenoid: Voltage Above Normal | Boom Raise commands are inhibited. |
| 583–5 | Boom Raise Solenoid: Current Below Normal | Boom Raise commands are inhibited. |
| 583–6 | Boom Raise Solenoid: Current Above Normal | Boom Raise commands are inhibited. |
| 583–13 | Boom Raise Solenoid: Out of Calibration | Boom system requires calibration before returning to service. |
| 679-3 | Torque Converter Lockup Clutch Solenoid : Voltage Above Normal | Engine stall is likely. |
| 679-5 | Torque Converter Lockup Clutch Solenoid : Current Below Normal | The Lockup Clutch is disabled. |
| 679-6 | Torque Converter Lockup Clutch Solenoid : Current Above Normal | The Lockup Clutch is disabled. |
| 679-13 | Torque Converter Lockup Clutch Solenoid : Out Of Calibration | Lockup Clutch Solenoid will require calibration prior to machine operation. |
| 681-3 | Parking Brake Solenoid : Voltage Above Normal | With the solenoid energized to +battery, the operator will be unable to engage the parking brake. |
| 681-5 | Parking Brake Solenoid : Current Below Normal | When this diagnostic code is active, the ECM will be unable to control the parking brake solenoid. The parking brake will always be engaged. |
| 681-6 | Parking Brake Solenoid : Current Above Normal | When this diagnostic code is active, the ECM will be unable to control the parking brake solenoid. The parking brake will always be engaged. |
| 681-7 | Parking Brake Solenoid : Mechanical System Not Responding Properly | This FMI code is triggered when the park brake switch is moved to the OFF (disengage) position and the ECM does not detect a pressure of The most likely cause of this event code is a blockage in the hydraulic system. A blockage in the system will not allow for high enough pressure to release the brake. A mechanical problem could also allow for this code. Cold weather that approaches |
| 1197–3 | Blade Lower Solenoid: Voltage Above Normal | The blade will not lower when commanded. |
| 1197–5 | Blade Lower Solenoid: Current Below Normal | The blade will not lower when commanded. |
| 1197–6 | Blade Lower Solenoid: Current Above Normal | The blade will not lower when commanded. |
| 1197–13 | Blade Lower Solenoid: Out of Calibration | Calibration of the solenoid is required before turning machine to service. |
| 1198–3 | Blade Raise Solenoid: Voltage Above Normal | The blade will not raise when commanded. |
| 1198–5 | Blade Raise Solenoid: Current Below Normal | The blade will not raise when commanded. |
| 1198–6 | Blade Raise Solenoid: Current Above Normal | The blade will not raise when commanded. |
| 1198–13 | Blade Raise Solenoid: Out of Calibration | Calibration of the solenoid is required before turning machine to service. |
| 1401-3 | Transmission Solenoid 1 : Voltage Above Normal | A Level 2 warning will activate. |
| 1401-5 | Transmission Solenoid 1 : Current Below Normal | A Level 1 warning will activate. |
| 1401-6 | Transmission Solenoid 1 : Current Above Normal | A Level 1 warning will activate. |
| 1401-13 | Transmission Solenoid 1 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 1402-3 | Transmission Solenoid 2 : Voltage Above Normal | A Level 2 warning will activate. |
| 1402-5 | Transmission Solenoid 2 : Current Below Normal | A Level 1 warning will activate. |
| 1402-6 | Transmission Solenoid 2 : Current Above Normal | A Level 1 warning will activate. |
| 1402-13 | Transmission Solenoid 2 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 1403-3 | Transmission Solenoid 3 : Voltage Above Normal | A Level 2 warning will activate. |
| 1403-5 | Transmission Solenoid 3 : Current Below Normal | A Level 1 warning will activate. |
| 1403-6 | Transmission Solenoid 3 : Current Above Normal | A Level 1 warning will activate. |
| 1403-13 | Transmission Solenoid 3 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 1404-3 | Transmission Solenoid 4 : Voltage Above Normal | A Level 2 warning will activate. |
| 1404-5 | Transmission Solenoid 4 : Current Below Normal | A Level 1 warning will activate. |
| 1404-6 | Transmission Solenoid 4 : Current Above Normal | A Level 1 warning will activate. |
| 1404-13 | Transmission Solenoid 4 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 1405-3 | Transmission Solenoid 5 : Voltage Above Normal | A Level 2 warning will activate. |
| 1405-5 | Transmission Solenoid 5 : Current Below Normal | A Level 1 warning will activate. |
| 1405-6 | Transmission Solenoid 5 : Current Above Normal | A Level 1 warning will activate. |
| 1405-13 | Transmission Solenoid 5 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 1406-3 | Transmission Solenoid 6 : Voltage Above Normal | A Level 2 warning will activate. |
| 1406-5 | Transmission Solenoid 6 : Current Below Normal | A Level 1 warning will activate. |
| 1406-6 | Transmission Solenoid 6 : Current Above Normal | A Level 1 warning will activate. |
| 1406-13 | Transmission Solenoid 6 : Out Of Calibration | Calibration of solenoid required before machine can be operated. |
| 2362-3 | Boom Lower Solenoid : Voltage Above Normal | Boom Lower commands are inhibited. |
| 2362-5 | Boom Lower Solenoid : Current Below Normal | Boom Lower commands are inhibited. |
| 2362-6 | Boom Lower Solenoid : Current Above Normal | Boom Lower commands are inhibited. |
| 2362-13 | Boom Lower Solenoid : Out Of Calibration | Boom system requires calibration before returning to service. |
| 3737-3 | Transmission Main Relief Valve Solenoid : Voltage Above Normal | A Level 2 warning will activate. |
| 3737-5 | Transmission Main Relief Valve Solenoid : Current Below Normal | A Level 1 warning will be active. |
| 3737-6 | Transmission Main Relief Valve Solenoid : Current Above Normal | A Level 1 warning will be active. |
| 3737-11 | Transmission Main Relief Valve Solenoid : Failure Mode Not Identifiable | A Level 1 warning will be active. |
| 5854-3 | Arch In Solenoid : Voltage Above Normal | Arch In commands are inhibited by the ECM. |
| 5854-5 | Arch In Solenoid : Current Below Normal | Arch In commands are inhibited by the ECM. |
| 5854-6 | Arch In Solenoid : Current Above Normal | Arch In commands are inhibited by the ECM. |
| 5854-13 | Arch In Solenoid : Out Of Calibration | Calibration is required before machine is returned to service.
Default values used by the ECM in the interim. |
| 5855-3 | Arch Out Solenoid : Voltage Above Normal | Arch Out commands are inhibited by the ECM. |
| 5855-5 | Arch Out Solenoid : Current Below Normal | Arch Out commands are inhibited by the ECM. |
| 5855-6 | Arch Out Solenoid : Current Above Normal | Arch Out commands are inhibited by the ECM. |
| 5855-13 | Arch Out Solenoid : Out Of Calibration | Calibration is required before machine is returned to service.
Default values used by the ECM in the interim. |
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| Implement ECM (MID 82) | ||
|---|---|---|
| DTC | Code Description | System Response |
| 2177-3 | Primary Steering Disable Solenoid : Voltage Above Normal | Steering commands are inhibited. |
| 2177-5 | Primary Steering Disable Solenoid : Current Below Normal | Steering commands are inhibited. |
| 2177-6 | Primary Steering Disable Solenoid : Current Above Normal | Steering commands are inhibited. |
| 3284-3 | Primary Steering System Steer Left Solenoid : Voltage Above Normal | Steering commands are inhibited. |
| 3284-5 | Primary Steering System Steer Left Solenoid : Current Below Normal | Steering commands are inhibited. |
| 3284-6 | Primary Steering System Steer Left Solenoid : Current Above Normal | Steering commands are inhibited. |
| 3284-13 | Primary Steering System Steer Left Solenoid : Out Of Calibration | Steering system requires calibration before returning to service. |
| 3285-3 | Primary Steering System Steer Right Solenoid : Voltage Above Normal | Steering commands are inhibited. |
| 3285-5 | Primary Steering System Steer Right Solenoid : Current Below Normal | Steering commands are inhibited. |
| 3285-6 | Primary Steering System Steer Right Solenoid : Current Above Normal | Steering commands are inhibited. |
| 3285-13 | Primary Steering System Steer Right Solenoid : Out Of Calibration | Steering system requires calibration before returning to service. |
Possible Causes for an FMI 3 Diagnostic code are:
- The harness is shorted.
- The Machine ECM has failed. An ECM failure is unlikely.
Possible causes for an FMI 5 Diagnostic code are:
- There is an open in the circuit.
- The solenoid has failed.
- The Machine ECM has failed. An ECM failure is unlikely.
Possible causes for an FMI 6 Diagnostic code are:
- A wire is shorted to ground.
- The solenoid has failed.
- The Machine ECM has failed. An ECM failure is unlikely.
Possible causes for an FMI 7 Diagnostic code are:
- The pressure of
1918 kPa (278 psi) was not realized within 10 seconds of disengaging the brake. - A blockage exists in the hydraulic system that has reduced the available pressure.
- A mechanical issue exists that is not allowing the disengagement of the brake.
- Cold conditions exist that have changed the viscosity of the oil. Extreme cold is defined as
−32° C (−25° F) or less.
Possible causes for an FMI 11 Diagnostic code are:
- An internal failure of the interface module.
Possible causes for an FMI 13 Diagnostic code are:
- New software has been flashed to the ECM.
- The Machine ECM has been replaced.
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| Illustration 1 | g06169634 |
|
Solenoid Schematic of the Machine ECM | |
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| Illustration 2 | g06169647 |
|
Solenoid Schematic of the Implement ECM | |
Note: The diagrams above are a simplified schematics of the Machine ECM. The schematic is electrically correct. However, not all the possible harness connectors are shown. Refer to the Electrical System Schematic for the complete schematic.
Diagnostic Trouble Code Procedure
Note: Prior to beginning this procedure, inspect the harness connectors that are involved in this 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 the diagnostic code is active before performing a troubleshooting procedure. For sensors powered via the fuse panel, check the condition of the appropriate fuse before beginning the troubleshooting procedure.
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| Troubleshooting Test Steps | Values | Results |
|---|---|---|
| 1. Identify Active FMI Code Associated With Solenoid Circuit | Code present. |
FMI 3 diagnostic code, proceed to Test Step 2. FMI 5 diagnostic code, proceed to Test Step 3. FMI 6 diagnostic code, proceed to Test Step 5. FMI 7 diagnostic code, proceed to Test Step 7. FMI 11 diagnostic code, proceed to Test Step 9. FMI 13 diagnostic code, proceed to Test Step 11. |
| Begin Process For FMI 3 Troubleshooting HERE | ||
| 2. Check The Machine Harness For A Short A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the harness connection at solenoid. C. If the solenoid is connected to ECM, disconnect J1 and J2 connectors from ECM. If the solenoid is connected to the switch panel, disconnect all switch panel connectors. D. Measure the resistance of solenoid signal contact to all J1 and J2 connectors, if the solenoid is wired directly to the ECM. If the solenoid is wired directly to the switch panel, measure resistance of solenoid contact to all switch panel connectors. |
Each reading is greater than 5K ohms. |
OK - All resistance readings are greater than 5K ohms. Proceed to Test Step 12. NOT OK - One or more readings are less than 5 ohms. Repair - A short exists between the signal contact and the circuit with the low resistance. Repair or replace the machine harness. Note: A resistance that is greater than 5 ohms but less than 5K ohms would indicate a loose connection or a corroded connection in the circuit. A resistance measurement that is greater than 5K ohms would indicate an open in the circuit. Proceed to Test Step 12. |
| Begin Process For FMI 5 Troubleshooting HERE | ||
| 3. Check The Solenoid. A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the solenoid from the machine harness. C. Place a jumper wire between contact 1 and contact 2, at the harness connector for the solenoid. D. Turn the key start switch and the disconnect switch ON. Do not start the engine. E. As the jumper is removed and connected to the contacts, observe any code change. |
The code changes to FMI 6 after the jumper wire is installed. |
OK - The circuit is correct. The solenoid has failed. Repair: Replace the solenoid. Proceed to Test Step 12. NOT OK - The diagnostic code remains active. Proceed to Test Step 4. |
| 4. Check The Machine Harness For An Open. A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the harness connectors from the ECM (or switch panel). C. The jumper wire remains installed. D. At the machine harness connector for the ECM, measure the resistance at the ECM contacts for the solenoid. |
Each reading is less than 5 ohms. |
OK - The reading is less than 5 ohms the harness is correct. Proceed to Test Step 12. NOT OK - The reading is greater than 5K ohms. The circuit is open in the machine harness. Repair : The open is in the wire for the solenoid signal or the return wire for the solenoid. Repair or replace the machine harness. Note: A resistance that is greater than 5 ohms but less than 5K ohms would indicate a loose connection or a corroded connection in the circuit. A resistance measurement that is greater than 5K ohms would indicate an open in the circuit. Proceed to Test Step 12. |
| Begin Process For FMI 6 Troubleshooting HERE | ||
| 5. Check The Solenoid A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the solenoid from the machine harness. C. Place a jumper wire between contact 1 and contact 2, at the harness connector. D. Turn the key start switch and the disconnect switch ON. Do not start the engine. E. As the jumper is removed and connected to the contacts, observe any code change. |
The FMI 6 diagnostic code changes to an FMI 5 diagnostic code after the jumper wire is installed. |
OK - The circuit is correct. The solenoid has failed. Repair: Repeat the jumper wire test. Verify the solenoid failure. Replace the solenoid. Note: After the solenoid is replaced, confirm that the diagnostic code is no longer active. Proceed to Test Step 12. NOT OK - The diagnostic code remains active. Proceed to Test Step 6. |
| 6. Check Machine Harness For A Short To Ground A. The machine harness remains disconnected from the solenoid. B. Turn the key start switch and the disconnect switch OFF. C. Disconnect the harness connectors from the ECM (or switch panel). D. At the harness connector for ECM, measure the resistance between the solenoid signal contact and all ground contacts. |
Each reading is greater than 5K ohms. |
OK - Machine harness correct. Proceed to Test Step 12. NOT OK - One or more of the resistance measurements are less than 5 ohms. A short circuit exists in the machine harness. Repair: A short circuit exists between the wire for the signal wire of the solenoid and the circuit with the low resistance. Repair or replace the machine harness. Note: A resistance that is greater than 5 ohms but less than 5K ohms would indicate a loose connection or a corroded connection in the circuit. A resistance measurement that is greater than 5K ohms would indicate an open in the circuit. Proceed to Test Step 12. |
| Begin Process For FMI 7 Troubleshooting HERE | ||
| 7. Check The Pressure At The Park Brake Solenoid. A. Use Cat ET to monitor the park brake pressure circuit. B. Make sure that the transmission is set to NEUTRAL and start the engine. C. Maintain pressure on the primary brake. D. Press the Park Brake switch to shutoff the Park Brake. |
The park brake is released within the 10 second interval. The system pressure has exceeded |
OK - The Park Brake is disengaged within 10 seconds of pressing the switch. Proceed to Test Step 8. NOT OK - The Park Brake solenoid does not disengage the park brake within the 10 second interval. The ECM did not detect a pressure greater than Repair : Most likely, the hydraulic system is blocked and not allowing the required pressure to pass to the park brake. A mechanical problem can also create faults within the park brake system. At ambient temperatures of Proceed to Test Step 12. |
| 8. Check For Diagnostic Codes Related To Pressure Sensors. A. Check for diagnostic codes of pressure sensors that provide input to the ECM for controlling this specific solenoid. |
The pressure sensors associated with specific solenoid are working properly. |
OK - There are no related diagnostic codes associated with failures of the specified pressure sensors. Repair : If no failure is identified, replace the ECM. Prior to replacing an ECM contact the Technical Communicator at your dealership for possible consultation with Caterpillar. If the Implement ECM must be replaced see Troubleshooting, "ECM - Replace". NOT OK - There are related diagnostic codes that are related to failures of pressure sensors. Exit this procedure and perform the diagnostic procedures for the diagnostic codes that are listed. Proceed to Test Step 12. |
| Begin Process For FMI 11 Troubleshooting HERE | ||
| 9. Check The Solenoid. A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the solenoid from the machine harness. C. Place a jumper wire between contact 1 and contact 2, at the harness connector for the solenoid. D. Turn the key start switch and the disconnect switch ON. Do not start the engine. E. As the jumper is removed and connected to the contacts, observe any code change. |
The code changes to FMI 6 after the jumper wire is installed. |
OK - The circuit is correct. The solenoid has failed. Repair: Replace the solenoid. After replacement of the solenoid, confirm that the diagnostic code is not active. Proceed to Test Step 12. NOT OK - The diagnostic code remains active. Proceed to Test Step 10. |
| 10. Check The Machine Harness For An Open. A. Turn the key start switch and the disconnect switch OFF. B. Disconnect the harness connectors from the ECM (or switch panel). C. The jumper wire remains installed. D. At the machine harness connector for the ECM, measure the resistance at the ECM contacts for the solenoid. |
Each reading is less than 5 ohms. |
OK - The reading is less than 5 ohms the harness is correct. Proceed to Test Step 12. NOT OK - The reading is greater than 5K ohms. The circuit is open in the machine harness. Repair : The open is in the wire for the solenoid signal or the return wire for the solenoid. Repair or replace the machine harness. Note: A resistance that is greater than 5 ohms but less than 5K ohms would indicate a loose connection or a corroded connection in the circuit. A resistance measurement that is greater than 5K ohms would indicate an open in the circuit. Proceed to Test Step 12. |
| Begin Process For FMI 13 Troubleshooting HERE | ||
| 11. Check the Calibration A. Perform the calibration procedure for the solenoid. Refer toSystems Operation & Testing and Adjusting, UENR0376, "Calibrations (Cat ET". B. Observe the status of the code. |
The code is not active. |
OK - FMI 13 is not active. The calibration corrected the condition that caused the diagnostic code Repair: Resume normal operation STOP NOT OK - The FMI 13 diagnostic code is active. The diagnostic code has not been corrected. Verify that the correct software has been flashed into the ECM, or that the correct ECM is installed on the machine. Then repeat the calibration Repair: If the diagnostic code is still active and the cause of the diagnostic code is not found, the ECM may have failed. ECM failure is unlikely. Verify that the solenoid and associated circuits are correct. Prior to replacing an ECM, always contact your dealership for possible consultation with Caterpillar. This consultation may greatly reduce repair time. If the ECM requires replacement, refer to Troubleshooting, "ECM - Replace" STOP |
| 12. Check If The Diagnostic Code Remains A. Turn the key start switch and the disconnect switch ON. B. Clear all diagnostic codes. C. Operate the machine. D. Check if diagnostic code for the solenoid is active. |
Code for solenoid is no longer present. |
OK - The diagnostic code does not currently exist. The initial diagnostic code may have been caused by poor electrical connection or short at one of the harness connections. Resume machine operation.
STOP NOT OK - The diagnostic trouble code has not been corrected. If the diagnostic code has not been corrected after performing the procedure a second time, the ECM may require replacement. Prior to replacing the ECM, always contact the Technical Communication at your dealership for possible consultation with Caterpillar. This consultation may greatly reduce repair time. Refer to Troubleshooting, "ECM - Replace" if the ECM needs to be replaced. STOP |
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