Diagnostics

JCB Fault Codes List by Machine Type

110 JCB fault codes and error codes, organized by machine type. Pick the machine to browse its codes.

Dump Truck71 guides
Engine1 guide
Excavator38 guides

Looking for a different JCB 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.