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High Quality Controller 7835-26-2003 7835262003 for Komatsu PC300-7 PC350-7 PC360-7 Excavator

CA111 - Pump 1 discharge pressure sensor abnormality (signal out of range).

CA112 - Pump 2 discharge pressure sensor abnormality.

CA122 - Pump 1 control current abnormality (NC/PC solenoid circuit fault).

CA222 - Pump 2 control current abnormality.

CA144 - Pump 1 tilting angle sensor abnormality.

CA244 - Pump 2 tilting angle sensor abnormality.

CA187 - Swing parking brake solenoid abnormality (current fault).

CA342 - Arm regeneration solenoid abnormality.

CA352 - Boom regeneration solenoid abnormality.

CA433 - Travel speed shift solenoid abnormality.

CA525 - Engine control communication error (data from engine ECU lost).

CA551 - CAN bus error (main controller communication fault).

CA552 - Display unit communication error (monitor communication lost).

E01 - Engine overspeed (RPM exceeds maximum limit).

E02 - Engine underspeed (RPM below minimum threshold).

E03 - Engine speed sensor abnormality (signal irregular).

E11 - Common rail pressure sensor abnormality (signal out of range).

E15 - Engine coolant temperature sensor abnormality.

E20 - Intake air temperature sensor abnormality.

E21 - Atmospheric pressure sensor abnormality.

E26 - Coolant level switch abnormality (low coolant warning).

E101 - DPF differential pressure sensor abnormality.

E102 - DPF over-temperature warning.

E103 - DPF regeneration request or failure.

E108 - Exhaust temperature sensor abnormality (DPF inlet/outlet).

E109 - DEF (diesel exhaust fluid) level sensor abnormality (if equipped).

E110 - DEF pressure sensor abnormality (if equipped).

AA10 - Fuel pre-filter warning (water detected or clogging).

HH01 - Hydraulic oil temperature sensor abnormality.

HH02 - Hydraulic oil level switch abnormality (low oil warning).

    How to choose the correct Fuel Pressure Sensor Assembly?

    Choosing the correct Common Rail Pressure Sensor for an excavator involves several important steps. Here’s a guide to help you make the right choice:

    Identify the Make and Model: Start by identifying the make, model, and year of the excavator. Different models may have different specifications for sensors.

    Check the Engine Specifications: The Common Rail Pressure Sensor is often specific to the engine type. Check the engine model and specifications, as the sensor must be compatible with the engine’s fuel system.

    Consult the Service Manual: Refer to the excavator’s service manual or technical documentation. This will provide detailed information about the required sensor specifications, including part numbers.

    OEM vs. Aftermarket:

    Decide whether you want to use an Original Equipment Manufacturer (OEM) part or an aftermarket part. OEM parts are typically more reliable but can be more expensive. Aftermarket parts may offer cost savings but ensure they meet quality standards.

    Check Connector Type and Pin Configuration:

    Ensure that the connector type and pin configuration of the sensor match the existing wiring harness in the excavator. Mismatched connectors can lead to installation issues.

    Pressure Range and Specifications:

     Verify the pressure range and specifications of the sensor. It should match the operational requirements of the common rail system in the excavator.

    Quality and Reliability:

    Look for sensors from reputable manufacturers known for quality and reliability. Reading reviews and seeking recommendations can help.

    Warranty and Support:

     Check if the sensor comes with a warranty and what kind of customer support is available. This can be important if you encounter issues after installation.

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