The ECM detects all of the following conditions:
- Hydraulic oil temperature is greater than 94 °C (201 °F) for more than four seconds.
- 600-03 "Hydraulic Temperature Sensor open/short to +batt" is not active.
- 600-04 "Hydraulic Temperature Sensor short to ground" is not active.
System Response:
The ECM will log the warning. The ECM will transmit a warning to the display in the cab. The ECM will reset the warning when the hydraulic oil temperature falls below 92 °C (198 °F) for two seconds.
- Low power
- There may be a problem with the hydraulic system.
Test Step 1. Check for Diagnostic Codes
- Connect ET to the service tool connector.
- Turn the keyswitch to the ON position.
- Check for any active diagnostic codes or logged diagnostic codes.
Expected Result:
There should be no diagnostic codes that are present.
Results:
- OK - Proceed to Test Step 2.
- Not OK -
Repair: Repair the diagnostic codes that are present. Refer to the appropriate topic in the "Troubleshooting With a Diagnostic Code" section of this manual.Ensure that the repair eliminates the problem.
Stop.
Test Step 2. Perform a Check of the Hydraulic System
- Perform a check of the hydraulic system.
Expected Result:
There are no problems with the hydraulic system.
Results:
- OK - There may be an intermittent problem.
Repair: Monitor the operation of the machine.Repair the problem.Ensure that the repair eliminates the problem.
Stop.
- Not OK -
Repair: Repair the problem.Ensure that the repair eliminates the problem.
Stop.