EDGE-CUTTING 4T6531 - Caterpillar

Table 1
J1939 Code and Description Comments
100-1
Engine Oil Pressure : Low - most severe (3) The engine oil pressure is below the map-based trip point and the delay time has expired.
The engine is shutdown.
The code is logged.
100-17
Engine Oil Pressure : Low - least severe (1) The engine oil pressure is below the map-based trip point and the delay time has expired.
The code is logged. Probable Causes
Codes
Oil level
Oil viscosity
Contaminated oil
Sensors
Connectors and wiring
Suction tube
Oil cooler
Valves
Worn engine componentsRecommended Actions
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: A code is active or logged.
Proceed to Test Step 2.
2. Check the Engine Oil Level
Oil Level
Result: The engine oil level is OK.
Proceed to Test Step 3.
Result: The engine oil level is low.
Repair: Add oil and repair any leaks.
If the problem is not resolved, proceed to Test Step 3.
3. Ensure that the Oil Viscosity is Correct
Oil Viscosity
Result: The engine oil viscosity is correct.
Proceed to Test Step 4.
Result: The engine oil viscosity is not correct.
Repair: Replace the engine oil.
If the problem is not resolved, proceed to Test Step 4.
4. Check for Contaminated Engine Oil
A. Obtain an S O S oil analysis. The analysis will contribute to a better understanding of oil contamination.
Note: High engine oil level can be an indication of contamination with coolant. Engine oil that is contaminated with another liquid will cause low engine oil pressure.
Contamination
Result: The oil is not contaminated.
Proceed to Test Step 5.
Result: The oil is contaminated.
Repair: Perform the following procedure:
1. Determine the reason for any contamination of the engine oil. Repair or replace damaged components.
2. Drain the crankcase and refill the crankcase with clean engine oil.
3. Install new engine oil filters. Refer to Operation and Maintenance Manual for additional information.
If the problem is not resolved, proceed to Test Step 5.
5. Check the Oil Pressure Sensors
A. Connect Cat ET.
B. Use Cat ET to compare the status of the following parameters while the engine is OFF:
- "Unfiltered Oil Pressure"
- "Engine Oil Pressure"
Parameter
Result: The sensors read 0 14 kPa (0 2 psi) while the engine is off.
Proceed to the Step 7.
Result: A sensor does not read 0 14 kPa (0 2 psi) while the engine is off.
Proceed to Test Step 6.
6. Inspect the Electrical Connectors and the Wiring
A. Turn the main disconnect switch to the OFF position.
B. Thoroughly inspect the connectors. Refer to Troubleshooting, "Electrical Connectors-Inspect" for additional information.
C. Perform a 45 N (10 lb) pull test on the connector wires.
D. Check the harness for abrasions and pinch points.
Connectors and Wiring
Result: The connectors and/or wiring appear to be OK.
Repair: Replace the sensor.
If the problem is not resolved, proceed to Test Step 7.
Result: There is a problem with the connectors and/or wiring.
Repair: Repair or replace the connectors or wiring. Ensure that all the seals are properly in place and ensure that the connectors are