DEF Tank Temperature Is Low
`
C3.4B Engines
[UENR4499]
AIR INLET AND EXHAUST SYSTEM
AFTERTREATMENT GP
Show/hide table
| Diagnostic Trouble Code for DEF Tank Temperature Is Low | ||
|---|---|---|
| J1939 Code | Description | Notes |
| 3031-10 | Aftertreatment #1 DEF Tank Temperature : Abnormal Rate of Change | The Electronic Control Module (ECM) detects that the DEF tank temperature is not responding when the coolant diverter valve is activated.
The battery voltage is at least 10 V. The warning lamp will come on. |
| Follow the troubleshooting procedure to identify the root cause of the problem. | ||
Complete the procedure in the order in which the steps are listed.
Show/hide table
| Troubleshooting Test Steps | Values | Results |
|---|---|---|
1. Check for Associated Diagnostic Trouble Codes A. Connect the electronic service tool to the diagnostic connector. B. Turn the keyswitch to the ON position. C. Use the electronic service tool to check for active diagnostic codes relating to the coolant diverter valve or the DEF tank temperature sensor. |
Diagnostic Trouble Codes | Result: An associated diagnostic trouble code is present. Repair: Troubleshoot the associated code. Refer to Troubleshooting, "Diagnostic Trouble Codes". Result: Diagnostic trouble code 3031-10 is present. Proceed to Test Step 2. |
2. Check the Coolant Level of the Engine A. Determine if the engine coolant level is full. |
Coolant Level |
Result: The coolant level is full. Proceed to Test Step 3. Result: The coolant level is not full. Repair: Add coolant to the system. Repair: Determine the cause of low coolant. Refer to Systems Operation, Testing and Adjusting, "Cooling System" for additional information. If adding coolant does not correct the fault, proceed to Test Step 3. |
3. Check the Engine Coolant Temperature A. Start the engine. Allow the engine to warm up to normal operating temperature. B. Connect to the electronic service tool. C. Select the Status Parameters tab. D. Check the coolant temperature. The temperature should be greater than |
Coolant temperature |
Result: The coolant temperature is greater than Proceed to Test Step 4. Result: The coolant temperature is less than Repair: Refer to Troubleshooting, "Coolant Temperature Is Low" for troubleshooting information. |
4. Check for Coolant Leaks A. Check for coolant leaks in the supply and return lines to the DEF tank header. |
Leaks |
Result: There are no leaks in the supply or return lines. Proceed to Test Step 5. Result: There are leaks in the supply or return lines. Repair: Repair the leaks and refill the coolant system. If the fault is still present, proceed to Test Step 5. |
5. Inspect the Coolant Lines for Restrictions and Obstructions A. Check for a restriction or obstruction in the coolant lines between the engine and the DEF tank header. |
Restrictions |
Result: There is a restriction in a line. Repair: Repair or replace the lines with the restrictions. Proceed to Test Step 8. Result: The coolant lines are OK. Proceed to Test Step 6. |
Show/hide table
| |
| Illustration 1 | g03716402 |
Show/hide table
| Troubleshooting Test Steps | Values | Results |
|---|---|---|
6. Check the Electrical Connection at the DEF Tank Header A. Inspect electrical connector (1) for the DEF tank header. Refer to Troubleshooting, "Electrical Connectors - Inspect" for further information. Refer to Illustration 1. Check for corrosion or loose wires. |
Electrical connections |
Result: The electrical connector is not corroded or loose. Proceed to Test Step 7. Result: The electrical connector is corroded and/or loose. Repair: Make the necessary repairs to the connectors. Cycle the keyswitch. Proceed to Test Step 8. |
7. Check the Coolant Diverter Valve Operation Note: The coolant diverter valve will only operate if the DEF tank temperature is less than A. Turn the keyswitch to the ON position. B. Start the engine. C. Connect to the electronic service tool. D. Monitor the "DEF Tank Temperature" for at least 20 minutes. Make sure that there is a gradual rise in the DEF tank temperature. Note: If the DEF tank temperature reaches |
Temperature rise |
Result: The DEF tank temperature increased. The fault appears to be resolved. If the active diagnostic code returns, contact the Dealer Solutions Network (DSN). Result: The DEF tank temperature did not increase. Replace the coolant diverter valve . |
Information System:
631K and 637K Wheel Tractor-Scraper Systems
Brake Accumulator Charging Valve - Test
621K OEM Wheel Tractor-Scraper
Connector Contact Description
621K OEM Wheel Tractor-Scraper
Wiring Harness (Short Circuit) - Test
621K OEM Wheel Tractor-Scraper
Wiring Harness (Open Circuit) - Test
621K OEM Wheel Tractor-Scraper
Switch Circuits - Test
621K OEM Wheel Tractor-Scraper
Solenoid Valve - Test
621K OEM Wheel Tractor-Scraper
Sensor Supply - Test
621K OEM Wheel Tractor-Scraper
Sensor Signal (PWM) - Test
621K OEM Wheel Tractor-Scraper
Sensor Signal (Analog, Passive) - Test
621K OEM Wheel Tractor-Scraper
Sensor Signal (Analog, Active) - Test
621K OEM Wheel Tractor-Scraper
Relay - Test
621K OEM Wheel Tractor-Scraper
Operator Control Switch (Switch to Ground) - Test
631K and 637K Wheel Tractor-Scraper Systems
Parking Brake - Test and Adjust
D8T Track-Type Tractor Power Train
Track Roller Frame - Remove and Install
966M and 972M Wheel Loaders
DEF Manifold Filters - Replace
631K and 637K Wheel Tractor-Scraper Systems
Service Brake System Pressure - Test
2014/11/25
Improved Bolted Joint for Rear Engine Mounts is Now Used On Certain Wheel Tractor Scrapers {1152, 1154}
950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems
Transmission Pressures - Test and Adjust
950 GC Wheel Loader Power Train
Tire and Rim (Front) - Remove and Install
D3K2, D4K2 and D5K2 Track-Type Tractor Systems
Winch Operation
525D, 535D, 545D and 555D Wheel Skidders Machine Systems
Secondary Steering Pump and Electric Motor - Remove and Install
Installation Procedure for the <NOBR>454-2353</NOBR> Lines Gp - Coupler on Certain Wheel Loaders {0679, 5057, 5133, 5491, 6129, 7050}
980L Medium Wheel Loader Power Train, Steering, Braking, Hydraulic, and Machine Systems
Control Manifold (Brake, Pilot, Fan) - HMU Steering
D4, D6K2 and D6K Track-Type Tractor Systems
Bank Valve (Implement)