Scion check engine codes
Overview
Scion (discontinued after 2016) used Toyota engines. EVAP and catalyst codes follow Toyota patterns.
Codes notably common on Scion
Scion specific notes
- Scion shares Toyota engines and EVAP designs. Toyota EVAP guidance starts with a genuine cap and a smoke test.
Owner's manuals
Official Scion owner's manual / owner portal (manufacturer site; we do not host copies).
Repair manuals
Step-by-step service manuals for Scion with torque specs and wiring diagrams:
Haynes manuals for Scion Chilton manuals
Affiliate disclosure: links in this box may earn FixOrPark a commission at no extra cost to you.
Recall lookup
Check open Scion recalls with your VIN at the NHTSA recall lookup.
Sources
- https://www.vehicleservicepros.com/tsbs/article/53091486/toyota-evap-dtcs-2012-08-21
- https://www.nhtsa.gov/recalls
Sources checked October 2026. Bulletins apply only to the models and years they list.
All other codes
These work the same on Scion as on any vehicle:
P0430 P0300 P0301 P0302 P0303 P0304 P0171 P0174 P0440 P0442 P0456 P0128 P0135 P0141 P0101 P0299 P2135 P0401