By model

The codes and fixes that show up most on each Toyota.

The Camry's engine computer logged a fault — usually EVAP, an O2/air-fuel sensor, or a misfire

The Corolla's engine computer logged a fault — often the same one that lights TRAC OFF

An engine fault made the Corolla's computer switch traction (TRAC) and stability (VSC) control off

The Highlander's computer logged a fault — often the same one that lights VSC / TRAC OFF

The Prius logged an engine OR hybrid-system fault — gen-3 EGR/misfire issues are well-known

The RAV4's engine computer logged a fault — usually EVAP, an O2/air-fuel sensor, or a misfire

An engine fault made the RAV4's computer switch traction (TRAC) and stability (VSC) control off as a fail-safe

The Sienna's engine computer logged a fault — EVAP and O2 sensors lead on the V6 minivan

The Tacoma's engine computer logged a fault — EVAP and O2 sensors lead, plus misfires

An engine fault made the Tacoma's computer switch traction (TRAC) and stability (VSC) control off as a fail-safe

The Tundra's computer logged a fault — on the 5.7L V8, secondary air injection (AIR) is a known one