How to Fix Error Code P02E2 “Earth Fault” on Doosan Excavator

This guide provides step-by-step instructions for resolving the error code P02E2, also known as “Earth Fault on Out1/2 Error,” on a Doosan Excavator’s Throttle H-Bridge.

Preparations:

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

Overview

Error Code: P02E2
SPN: 3464
FMI: 6

Cause

Reason: The error is triggered when the Throttle H-Bridge experiences a short to ground at Out1/2.

Impact

Effect on Operation: The system will impose a torque limit (SVS torque limit 25D).

Circuit Description

5V Power: Pin 234
DC Motor-: Pin 229
Ground (GND): Pin 240
Signal: Pin 215
DC Motor+: Pin 205

Component Location

To resolve the short to ground issue, locate the Throttle H-Bridge components mentioned above on your Doosan Excavator.

Diagnosis Requirements

Execution: The diagnosis can be carried out whether the engine is running or not.

Error Code Activation

Setting Requirements: The error code is triggered when the fault condition persists for 200ms.

Error Code Deletion

Clearing Requirements: The error code will automatically clear if the fault condition is absent for 50ms.

Checklist

Ensure all connections are secure and components are functioning correctly before and after repairs.

By following this guide, you should be able to identify and fix the short to ground issue causing the P02E2 error code on your Doosan Excavator.

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