| Code | Description | Likely Cause | | :--- | :--- | :--- | | | CAN Bus Off (Network Down) | Wiring harness chafing, dead battery, faulty ECU. | | AL 801 | Alternator Voltage Low | Broken alternator belt, failing voltage regulator. | | AL 936 | Key ON without Brake | Safety interlock fault (operator presence switch). | | SPN 168 FMI 0 | Battery Voltage High | Overcharging alternator or jump-start error. |
For owners and operators of Valtra tractors—whether a classic A-series workhorse, a versatile N-series, or a high-horsepower S-series—the moment a warning light flashes on the dashboard or an error code scrambles across the display can be unsettling. Valtra, known for its Finnish engineering and high level of customization (the "Sisu" philosophy), builds robust machines. However, like all modern agricultural equipment, they rely on a complex network of sensors, ECUs (Electronic Control Units), and CAN-bus systems. valtra error codes
Problems with the transmission control unit (TCU) or park brake circuit. | Code | Description | Likely Cause |
On newer S, N, and T series (2015+):
If an error code appears, follow these steps recommended in the Valtra Operator's Manual: Valtra Rear Linkage Service Codes | PDF | Switch - Scribd | | SPN 168 FMI 0 | Battery