VIN message count
Last reviewed 2026-08-31
Mode 09 · PID 01 (decimal 1)
Description
Number of messages needed to report the VIN in PID 02. Used on non-CAN protocols. CAN usually returns VIN in a single ISO-TP response.
- PID number
- 01 · 1
- Unit
- count
- Range
- —
- Data bytes
- 1
- Formula
- Usually 5 (ISO 9141-2 / J1850 / ISO 14230-4 only)
Defined by SAE J1979 / ISO 15031-5. Public index — not a substitute for the paid SAE document.
Sources
Provenance for this page. Official standards outrank community notes. See the confidence policy.
Official standard · high trust
SAE J1979 / ISO 15031-5 Mode 01 PID formulas (public index)
J1979 public PID index: 09 01