Published: July 2026 | Updated: July 2026
Reading Time: 8 Minutes
Article Summary
This article explains why XCMG cranes may show CAN communication faults, including common causes, inspection steps, customer case reference, and when CAN board replacement may be required.
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CAN communication faults are common electronic control system issues on modern XCMG cranes.
Operators may see communication warnings on the display monitor, fault codes, or unstable system feedback during crane operation.
Because XCMG cranes use multiple controllers, sensors, display units, safety modules, and CAN boards, one communication failure can affect the whole control network.
Maintenance Note:Repeated CAN communication faults should be checked early to avoid longer downtime and unnecessary replacement of unrelated components.
CAN, or Controller Area Network, is used to transfer data between crane electronic components.
In an XCMG crane, the CAN network allows controllers, sensors, display monitors, load monitoring systems, and safety modules to exchange information during operation.
Loose, broken, corroded, or damaged CAN wiring may interrupt signal transmission between control modules.
The CAN board works as a communication module in the crane control system. If the board is damaged, communication errors may appear repeatedly.
Moisture, dust, vibration, or poor contact at connectors may cause unstable CAN communication.
A faulty sensor connected to the CAN network may send abnormal data or fail to communicate with the controller.
Low voltage, unstable power supply, or poor grounding may affect the electronic control system.
Check the fault code on the crane display monitor
Inspect CAN wiring and connector condition
Check voltage supply and grounding
Inspect sensors connected to the CAN network
Check the CAN board and controller modules
Use diagnostic tools if available
A step-by-step inspection helps avoid replacing the wrong part.
A CAN board may need replacement when wiring, connectors, sensors, and power supply have been checked, but communication faults continue.
Common replacement situations include:
Repeated CAN communication fault warnings
Intermittent signal loss
Display monitor communication failure
Internal board damage found during inspection
Failed communication after diagnostic testing
A crane maintenance company in Southeast Asia contacted Qingdao Top Run after an XCMG truck crane repeatedly showed CAN communication warnings.
The customer had already checked the wiring harness and connectors, but the fault continued during operation.
After reviewing the fault description and original board photos, our team suggested inspecting the CAN board.
The customer replaced the CAN board during scheduled maintenance. After installation and testing, communication between the display monitor and control modules returned to normal.
This case shows why clear photos, machine information, and fault details are important before ordering electronic control parts.
CAN Board for XCMG Crane
XCMG Crane Display Monitor
Crane Electronic Controller
Communication Sensors
Wiring Harness Components
Common causes include damaged wiring, faulty CAN boards, connector problems, sensor faults, power supply issues, and controller failures.
No. Wiring, connectors, sensors, and power supply should also be inspected before replacing the CAN board.
Customers can send crane model information, board photos, connector details, and fault descriptions for compatibility checking.
Yes. Qingdao Top Run supplies CAN boards, display monitors, controllers, sensors, and other XCMG crane spare parts.
XCMG crane CAN communication faults may come from wiring, connectors, sensors, controllers, power supply problems, or CAN board failure.
Proper diagnosis helps reduce downtime and avoid unnecessary part replacement.
If you need help confirming the correct CAN board or related XCMG crane electronic parts, send us the machine model, fault code, and product photos for checking.
