SCREW-MACHINE 6V5370 - Caterpillar

Table 1
J1939 Code and Description CDL Code and Description Comments
98-1
Engine Oil Level : Low - most severe (3) E171 (3)
Low Engine Oil Level The ECM may derate the engine or shutdown the engine.
The code is logged.
98-17
Engine Oil Level : Low - least severe (1) E171 (1)
Low Engine Oil Level The ECM may derate the engine or shutdown the engine.
The code is logged.
98-18
Engine Oil Level : Low - moderate severity (2) E171 (2)
Low Engine Oil Level The ECM may derate the engine or shutdown the engine.
The code is logged.
N/A E540 (1)
Low Engine Oil Refill Tank Level The oil refill system tank level is low.
The code is logged. The oil pan contains three oil level sensors to monitor the oil level. These three oil level sensors each provide a status to Cat® Electronic Technician (ET) and a single rolled up status that informs the operator of the action necessary.The oil renewal system tank contains two oil level sensors (if equipped). Refer to the machine wiring schematic for information for the oil renewal system.
Illustration 1 g03878671
Oil pan sensors
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: An E540 code is active or logged.
Proceed to Test Step 2.
Result: An E171 or 98 code is active or logged.
Proceed to Test Step 3.
2. Check the Oil Level in the Oil Renewal System Tank
Oil Level
Result: The oil is at the proper level.
Proceed to Test Step 3.
Result: The oil level is low.
Repair: Add engine oil in order to obtain the correct oil renewal system tank level.
If the problem is not resolved, proceed to Test Step 4.
3. Check the Engine Oil Level
Oil Level
Result: The engine oil is at the proper level.
Proceed to Test Step 4.
Result: The engine oil level is low.
Repair: Add engine oil in order to obtain the correct engine oil level. Refer to Operation and Maintenance Manual, "Engine Oil" for the recommendations of engine oil.
Start the engine. Inspect the exterior of the engine for oil leaks. Repair any oil leaks.
If the problem is not resolved, proceed to Test Step 4.
4. Check the Supply Voltage at the Affected Sensor Connector
A. Disconnect the affected oil level sensor at the sensor connector.
B. Restore electrical power to the ECM.
C. Measure the voltage between the following wiring harness connector terminals for the oil level sensor:
- Terminal A (sensor supply) and Terminal B (sensor return)
D. Remove electrical power from the ECM.
8.0 0.5 VDC
Result: The voltage measurement is 8.0 0.5 VDC. The supply voltage is reaching the sensor.
Proceed to Test Step 5.
Result: The voltage measurement is not 8.0 0.5 VDC.
Repair: The sensor supply voltage is not reaching the sensor. There is a problem in the circuit for the sensor supply. Repair the wiring harness between the sensor and the ECM.
If the problem is not resolved, proceed to Test Step 5.
5. Short the