How to solve Doosan excavator DL0608 engine stage 5 P1521 low oil pressure error – Autonumen Offical Blog


The Doosan excavator DL0608 engine is equipped with advanced technology to ensure efficient performance. However, it is not uncommon for users to encounter issues such as the P1521 low oil pressure error. In this article, we will guide you through the steps to troubleshoot and solve this error, ensuring your Doosan excavator runs smoothly and efficiently.

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Doosan Data Monitoring System DMS-5 DMS-3 Free Download
Doosan Diagnostic Tool

CODE
E000100-01

REASON
1.Oil level low problem (Oil change period, Oil leakage)
2.Oil path problem (Oil filter or Oil suction pipe clogging)
3.Oil path problem (Oil filter or Oil pump broken)
4.Electrical problem (Oil pressure sensor connector, oil pressure sensor, wire harness sensor to ECU, faulty ECU, ECU connector)

EFFECT
CE Lamp Blink
Torque reduction 50%
Speed reduction Lv. 2

1)Oil pressure signal characteristic
The first step in solving the P1521 low oil pressure error is to familiarize yourself with the oil pressure signal characteristic. This will help you identify any abnormalities or deviations from the normal oil pressure range.

2) Component Location
Knowing the location of key components related to the oil pressure system is essential for effective troubleshooting. Familiarize yourself with the position of the oil filter, oil suction pipe, and oil pump to ensure a systematic approach to resolving the issue.

3) Condition for Running Diagnostic Engine running
To diagnose the P1521 low oil pressure error, the engine must be running. Ensure that the engine is in operational condition before proceeding with the diagnostic process.

4) Condition for Setting the Fault Code
The fault code is triggered when the oil pressure falls below the predetermined threshold for a duration of 0.5 seconds. Keep this in mind while conducting your diagnostic tests.

5) Condition for Clearing the Fault Code. Doosan DMS-5 2023.07
To clear the fault code, the oil pressure must exceed or equal the minimum threshold specified in the table for a duration of 0.5 seconds. This step is crucial to ensure the error is fully resolved and does not reoccur.

6 )Check List
Use the following checklist to systematically troubleshoot and identify potential causes of the low oil pressure error:
– Check the oil level and inspect for any leaks or oil change requirements.
– Inspect the oil filter for clogging or damage.
– Verify the condition of the oil suction pipe for any blockages.
– Check the functionality of the oil pump and replace if necessary.
– Inspect the oil pressure sensor connector, sensor, wire harness, ECU, and their respective connectors for any faults or damage.



Conclusion:
The P1521 low oil pressure error in the Doosan excavator DL0608 engine can be resolved by following the systematic troubleshooting steps outlined in this article. By understanding the oil pressure signal characteristic, locating key components, and conducting thorough diagnostic tests, you can effectively identify and rectify the underlying causes of the error. Regular maintenance and timely repairs will ensure optimal performance and longevity of your Doosan excavator.

More topics for Doosan,please refer to:Doosan Trouble Repair

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