This guide explains how to diagnose and resolve the Doosan Stage V engine excavator U010F fault code, which indicates a CAN-Receive-Frame DPM1 Timeout Error related to the air conditioning switch status and oil life reset system.
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Overview
Fault Code: U010F
Description: CAN-Receive-Frame DPM1 Timeout
Function: Air Conditioning Switch Status / Oil Life Reset
Category: “E” SPN/FMI
Possible Causes
- Electrical Issue (VCU / Abnormal CAN Network)
Instability or interruption in the communication network can cause missing CAN messages. - Electrical Issue (CAN Wiring Harness Problems)
- Damaged, pinched, or corroded wiring
- Poor insulation or high resistance in CAN lines
- Loose or contaminated connectors
Effect of the Fault
- Check Engine (CE) lamp turns ON
Component Location
The air conditioning switch and oil life reset switch locations vary depending on machine model and configuration.
Refer to the specific machine application diagrams for exact connector and component positions.
Diagnostic Conditions
When the System Checks for This Fault
- The ECU continuously monitors CAN communication at every sampling interval.
When the Fault Is Triggered
The fault code U010F is set when:
- The ECU does not receive a required CAN message within a fixed time interval.
- The missing message continues for 4 consecutive cycles.
Explanation:
CAN data is transmitted periodically. If the required DPM1 CAN frame fails to arrive four times in a row, the system identifies this as a timeout condition.
Condition for Clearing the Fault
- The fault code automatically clears when the ECU successfully receives the required CAN frame again.
- No manual reset is needed unless additional errors are present.