If a vehicle has a Canadian under-hood decal, what action should be taken regarding ECS?

• A. Ignore ECS
• B. Test Only PCV
• C. Check All ECS Components as if Federally or California Certified
• D. Test Only EGR

Answer: (C)

When a vehicle carries a Canadian under-hood decal, you treat the Emission Control System as needing verification against the U.S. federal or California standards. The decal signals that the ECS was certified under Canadian rules, which may differ from California’s requirements. To ensure the vehicle meets California emissions expectations, you inspect and test every part of the ECS, not just a subset. This comprehensive approach covers all components—PCV, EGR, evaporative system, catalytic converter, oxygen sensors, and related controls—to verify they would meet federal or California certification if evaluated under those standards. Skipping parts or focusing only on one area could miss a noncompliant component, leading to higher emissions. So you check all ECS components as if federally or California certified.