The fault is currently happening. The code cannot be permanently cleared until the underlying mechanical or electrical issue is repaired.
Understanding the FMI is critical. Common FMIs on Valtra: valtra error codes
Sometimes, recurring phantom error codes are caused by outdated ECU firmware. A dealer can flash the latest software patches to resolve these glitches permanently. The fault is currently happening
As a Valtra owner, you must evolve from being a reactive fixer to a proactive manager. Learn to read the codes, understand their root causes, and know when to stop versus when to push through. Common FMIs on Valtra: Sometimes, recurring phantom error
This code is a classic "mismatch" story. It triggers when the engine RPM and drivetrain speed do not align, often indicating that a multi-disc clutch in the DPS (Direct PowerShift) or shuttle is slipping. Operators have reported Facebook Plant Fitters Group that the tractor might run fine in lower gears but "slip" and throw the L422 code when accelerating into higher gears like PowerShift 3.
– DPF Regeneration Issues. The Diesel Particulate Filter soot loading is too high, or a regeneration cycle was interrupted too many times.
– Engine Speed Input to Transmission. The transmission controller has lost the speed signal from the engine crankshaft sensor, preventing smooth powershift or CVT adjustments. 3. Hydraulic and Three-Point Linkage Faults (HLAC)