Diagnostics

John Deere Fault Codes List by Machine Type

3,737 John Deere fault codes and error codes, organized by machine type. Pick the machine to browse its codes.

Engines1,853 codes
Tractors1,884 codes

Looking for a different John Deere code?Search the full fault-code database, or hand the code to the AI assistant for a plain-English explanation.

Safety-critical: confirm before use

Safety first: park on level ground, stop the engine, and secure the machine before any inspection. Thresholds, component locations, wire numbers, fuse locations, and reset procedures can vary by model, configuration, and serial number. Confirm them in the service documentation for your exact machine.