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Diagnostic comparisons

Compare OBD codes and concepts

P0420 vs P0430

Upstream vs downstream O2 sensor

Bank 1 vs Bank 2

OBD1 vs OBD2: scope

Diagnostic knowledge search

23,879 code identifiers with scoped meanings, and 54,261 enhanced signal definitions. No VIN or personal information is needed.

Diagnostic explainers

Pending, stored and permanent codes · Enhanced PIDs and Mode 22

54,261 matches

Page 392 · 11731–11760 shown
Enhanced PID
RPM avg

Chevrolet · rpm · 1 profiles

Enhanced PID
RPM#1

Toyota · rpm · 1 profiles

Enhanced PID
RPM#2

Toyota · rpm · 1 profiles

Enhanced PID
RPM#3

Toyota · rpm · 1 profiles

Enhanced PID
RPM#4

Toyota · rpm · 1 profiles

Enhanced PID
RPM#5

Toyota · rpm · 1 profiles

Enhanced PID
RPM#6

Toyota · rpm · 1 profiles

Enhanced PID
RPM_7E8

Toyota · rpm · 1 profiles

Enhanced PID
RPM_7EA

Toyota · rpm · 1 profiles

Enhanced PID
RPM_avg

Chevrolet · rpm · 1 profiles

Enhanced PID
RPMavg

Toyota · rpm · 1 profiles

Enhanced PID
RR ABS

Toyota · No scalar unit · 1 profiles

Enhanced PID
RR EBD

Toyota · No scalar unit · 1 profiles

Enhanced PID
RR VSC

Toyota · No scalar unit · 1 profiles

Enhanced PID
RR WA

Toyota · m/s² · 1 profiles

Enhanced PID
RR WS

Toyota · mph · 1 profiles

OBD Lens reference library · catalog legacy-owner-2026-11-02-v84-evidence. Sources and scope