Valtra | Error Codes

| Code | Description | Likely Cause | | :--- | :--- | :--- | | MID 136 SID 54 | Clutch Modulation Fault | Worn clutch discs, faulty clutch pedal sensor. | | AL 414 | Transmission Oil Temp High | Heavy load, low transmission oil, cooler blockage. | | AL 532 | HiTech Shuttle Fault | Reverse shuttle solenoid failure or wiring break. | | SPN 521 FMI 7 | Rear PTO Speed Sensor | PTO engaged but no rotation—broken shear bolt or sensor gap. | | AL 723 | Hydraulic Lift Position Sensor | Potentiometer out of range—draft sensor calibration required. |

These are the most common and often relate to the fuel or air intake systems. valtra error codes

Valtra offers several transmissions: HiTech (shuttle), Versu (semi-powershift), and CVT (smooth shift). Errors here often trigger a "Transmission Limp Mode." | Code | Description | Likely Cause |

| Code (MID/SID) | Description | Likely Cause | | :--- | :--- | :--- | | MID 140 SID 37 | Clutch 1 Speed Sensor | Sensor gap too wide, faulty sensor, or broken wiring. Tractor may jerk. | | MID 028 SID 27 | AutoTract (Cruise control) not available | Brake pedal switch stuck, clutch switch faulty, or speed signal lost. | | MID 138 PID 175 | Transmission Oil Temperature Too High | Overloading, low oil level, or clogged cooler. Reduce load. | | ERROR 05-12 (SmartTouch) | CVT Belt Slip Detected (Very Serious) | Low oil pressure, worn variator belt, or mechanical failure. Stop immediately. | | | SPN 521 FMI 7 | Rear

Valtra error codes are numeric/alphanumeric fault identifiers generated by the tractor’s electronic control units (engine ECU, transmission ECU, hydraulic/ISOBUS controllers). Each code points to a specific sensor, actuator, or subsystem abnormality and helps diagnose faults faster.

Errors here affect the rear lift, front loader, and remote valves.

| Code | Description | Likely Cause | | :--- | :--- | :--- | | MID 149 SID 46 | Rear Lift Position Sensor Fault | Calibration lost (common after battery disconnect). Needs recalibration. | | MID 229 PID 28 | Hydraulic Oil Filter Clogged | Change filter immediately. Bypass valve may be open. | | SPN 122 FMI 2 | Rear Linkage Angle Sensor – Data Erratic | Broken sensor linkage arm or faulty potentiometer. | | AUX 1 Not Responding (generic) | Remote valve failure | Coil resistance low (shorted) or stuck spool. |