CASE Grader – Fault Codes Reference Manual

Technical Highlights

• Type: Diagnostic Fault Code Reference

• System: Electronic Control Unit (ECU) / Transmission Control Unit (TCU)

• Models Covered: CASE 845B, 865B, 885B Motor Graders

• Revision: Rev. 6-16780

• Language: English

• File Info: PDF • 24 pages • Diagnostic data with error code descriptions and system responses

Table of Content

• General Information
    • Introduction to Fault Codes
    • Error Code Structure (Prefix & Numeric ID)
    • Fault Severity and Response Logic
    • Storage and Retrieval Procedures
    • EST Connection and Reading Steps

• Transmission-Related Fault Codes
    • Input/Output Speed Sensors
    • Clutch Pressure Sensor
    • Solenoid Valve 1–6 Circuit Faults
    • Gear Selector Signal Loss
    • Shift Command Timeout

• Communication & Electrical Faults
    • CAN Line Error
    • Power Supply Low/High Voltage
    • Ground and Shielding Faults
    • Controller-to-Display Link Error

• Hydraulic & Pressure System Errors
    • Pressure Transducer Failure
    • Oil Temperature Out of Range
    • Hydraulic Flow Deviation

• Corrective Procedures
    • Troubleshooting via EST
    • Data Logging and Error Reset
    • Component Replacement Criteria
    • Post-Repair Validation Tests

Delivery

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