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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) (PHEV) >> DTC P0447-00: Evaporative Emission System-Vent Control Circuit Open >> Wiring Inspection >> Control Circuit Inspection
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Control Circuit Inspection

  1. Ignition "OFF"
  2. Refer to FUEL TANK ISOLATION VALVE (FTIV) and ENGINE CONTROL MODULE (ECM) and disconnect Fuel Tank Isolation Valve and PCM connector.
  3. Measure resistance between Pin No. 2 (Control) terminal of Fuel Tank Isolation Valve harness connector and Pin No. 85 (Control) terminal of PCM harness connector.

    Specification:  Approx. below 1Ω

  4. Is measured value within specification?

    YES 

    NO