Technology · Data · Protocols
SAE J1939-11/22 Signal Catalogue
Searchable SAE J1939-11 and J1939-22 signal-name catalogue for heavy commercial vehicles, trucks, buses and construction machinery: 4,844 named signals with descriptions, 100 catalogued source-address entries and 94 preferred or special source-address functions.
Engineering overview
- 4,844 named J1939-11 and J1939-22 signals, each with its published definition.
- 4,854 definition variants, 100 catalogued source addresses, 94 preferred module identifiers.
- Covers heavy commercial vehicles, trucks, buses and construction/agricultural machinery — not only passenger cars.
- Machine-readable at https://www.xentron.com/vehicle-data/j1939.json.
- Signal-name and definition catalogue, not a numeric identifier map: the published export contains Name and Description fields but no numeric PGN or SPN columns (/vehicle-data/j1939.json reports numericPgnSpnIdentifiersPresent: false). Numeric PGN ↔ SPN mapping will be added when an identifier-bearing source export is supplied.
- 4,844 deduplicated SAE J1939 signal names.
- 94 preferred or special source-address functions.