DTC P0459: Evaporative Emission System Purge Control Valve Circuit High
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P0459 - EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
| Description: This DTC sets when the EVAPCP circuit output driver signal moves outside the minimum or maximum limit for the commanded state. | |||
Possible Causes:
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| Diagnostic Aids: To verify normal function, monitor the EVAPCP PID. With the valve closed, the EVAPCP indicates 0% duty cycle. When the valve is commanded fully open, the EVAPCP indicates 100% duty cycle. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST HZ . | ||