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Below are sample common error codes for New Holland and Case IH tractors. Use them as a guide—but always refer to your operator manual or diagnostic tool for your specific model.
What it means: Coolant temp reading is higher than expected.
Quick check: Inspect coolant level, radiator, thermostat, wiring.
When to call us: If code persists or overheating starts.
What it means: Intake air sensor reading too high.
Quick check: Check air intake tubing, sensor connection.
When to call us: If poor performance or error returns.
What it means: Engine oil pressure reading lower than expected.
Quick check: Check oil level, filter, pressure sensor.
When to call us: If pressure stays low or warning stays on.
What it means: Fuel system (CP3 pump) pressure issue.
Quick check: Inspect fuel supply, filters, pump.
When to call us: If engine hesitates or code stays active.
What it means: RPM sensor reads too high.
Quick check: Check sensor wiring, connectors, and speed sensor.
When to call us: If erratic engine behavior or code doesn’t clear.
What it means: Internal fault in ECU.
Quick check: Inspect connector and power supply.
When to call us: Immediately—diagnostic tool required.
What it means: Sensor supply circuit under voltage.
Quick check: Check battery, wiring, sensor power lines.
When to call us: If multiple sensors show errors or code persists.
What it means: Water detected in fuel system.
Quick check: Drain water separator, check filter.
When to call us: If engine performance drops or error persists.
What it means: Oil pressure signal is invalid.
Quick check: Check oil level, sensor, wiring.
When to call us: If warning stays on or oil pressure drops.
What it means: Hydraulic outlet sensor circuit fault.
Quick check: Inspect sensor and wiring.
When to call us: If hydraulic issues continue or code remains.
Note: Codes shown are examples and may not apply to all models. Always check your operator manual or contact Lyntech for accurate diagnostics.