P1421

DTC P1421: Evaporative Emission System Vent Valve Stuck Open/Closed

System Description
Refer to EVAP Leak Check System Description (If Equipped)

System Diagram:

System Diagram

Wiring Diagram:

Wiring Diagram




DTC Detecting Condition and Trouble Area

Step 1 - 4:

Step 4 (Continued) - 6:

DTC Troubleshooting