Component Inspection

Engine

Engine Control - P0447 Evap. Emission System - Vent Control Circuit Open - Component Inspection

Component Inspection

1. Check CCV
(1) Ignition "OFF"
(2) Measure resistance between terminals "1" and "2" of the CCV connector.

Specification : Approx. 19.8 - 21.8 Ohms (20°C (68°F))




(3) Monitor the CCV signal waveform and verify that the ground voltage is less than approx. 0.3 V (1) and the surge voltage (2) is between 40 V and 60 V.




(4) Is the CCV normal?






NOTE:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others