O2 sensor monitor Bank 1 Sensor 3 (lean-to-rich threshold)
Last reviewed 2026-08-31
Mode 05 · PID 0203 (decimal 515)
Description
Mode 05 non-CAN: lean-to-rich oxygen-sensor threshold voltage, bank 1 sensor 3.
- PID number
- 0203 · 515
- Unit
- V
- Range
- 0 … 1.275
- Data bytes
- 2
- Formula
- 0.005 V/bit (lean-to-rich threshold)
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: 05 0203