What is Hitachi ZX200LC-5G Fault Code 14107-2?

Fault Code 14107-2 on the Hitachi ZX200LC-5G indicates a malfunction in the Engine Control Module (ECM) communication circuit, specifically related to a CAN (Controller Area Network) communication error between the engine ECM and the main machine controller. This diagnostic trouble code (DTC) signals that data transmission between critical control systems has been interrupted or is experiencing abnormal signal patterns.

The CAN bus system serves as the nervous system of modern excavators, allowing the engine ECM, hydraulic controller, and display monitor to share real-time operational data. On the ZX200LC-5G, this communication network is essential for coordinating engine performance with hydraulic demand, ensuring optimal fuel efficiency and preventing component damage. When Code 14107-2 appears, the machine's integrated systems cannot properly synchronize, potentially leading to reduced performance or complete shutdown as a protective measure.

Common Symptoms

• Warning light illumination on the instrument cluster, often accompanied by a "Check Engine" or "System Error" message on the monitor display
• Engine derating or power reduction mode, where the excavator operates at significantly reduced horsepower to prevent further damage
• Intermittent loss of hydraulic functions or erratic hydraulic response, particularly during combined operations
• Dashboard gauge malfunctions, including inaccurate or frozen fuel level, temperature, or hour meter readings
• Difficulty starting or unexpected engine shutdown, especially after the machine has warmed up to operating temperature

Potential Causes

The most common technical failures triggering Code 14107-2 on used ZX200LC-5G excavators include:

• Corroded or damaged CAN bus connectors, particularly at the ECM harness connection point behind the battery box where moisture accumulation is common
• Worn or chafed wiring harness along known rub points near the engine mount and swing bearing, where vibration causes insulation breakdown over time
• Failing ECM or main controller, especially in machines with 8,000+ operating hours where capacitor degradation affects signal processing
• Voltage irregularities from a weak battery or failing alternator, causing insufficient power supply to maintain stable CAN communication (voltage below 22V on the 24V system)
• Aftermarket component interference, such as non-OEM monitors or tracking devices improperly tapped into the CAN network

How to Troubleshoot and Fix Code 14107-2

Step 1: Perform Visual Inspection Begin by examining all CAN bus connectors at the ECM (located under the right-side panel) and the main controller (beneath the operator's cab). Look for green corrosion, bent pins, or moisture inside connector housings. On used excavators, pay special attention to the harness routing near the engine—check for worn insulation at contact points with metal brackets.

Step 2: Test Electrical System Integrity Using a digital multimeter, verify battery voltage with the engine running (should read 26-28V). Check the CAN-High and CAN-Low wires (typically yellow and green) for proper resistance: you should measure approximately 60 ohms between CAN-H and CAN-L with the system powered down and all controllers disconnected. Deviation indicates a short circuit or open connection.

Step 3: Utilize Diagnostic Software Connect Hitachi Dr.EX diagnostic software or a compatible J1939 scanner to read live CAN bus data. Monitor communication packets between the ECM and main controller while operating the machine. Intermittent dropouts visible in the data stream often point to vibration-related harness issues rather than controller failure.

Step 4: Address Identified Issues Clean all connectors with electrical contact cleaner and apply dielectric grease to prevent future corrosion. Replace any damaged harness sections using OEM-spec shielded cable—aftermarket wire often lacks proper shielding, causing communication errors. If controllers are suspect, swap with known-good units before purchasing replacements, as used excavators sometimes have multiple intermittent issues that mimic controller failure.

Disclaimer: This guide provides general troubleshooting information. Always consult the official Hitachi service manual for your specific machine serial number and consider professional diagnostic services for complex electrical issues.