DTC P0443: Evaporative Emission System Purge Control Valve Circuit
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DTC P0443: EVAPORATIVE EMISSION SYSTEM PURGE CONTROL VALVE CIRCUIT
| Description: | The PCM monitors the state of the EVAPCP circuit output driver. This DTC sets when the 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 EVMV PID or EVAPCP PID and the signal voltage (PCM control side). With the valve closed, the EVMV indicates 0 mA (0% duty cycle for EVAPCP) and voltage approximately equal to battery voltage. When the valve is commanded fully open, EVMV indicates 1, 000 mA (100% duty cycle for EVAPCP) and a voltage drop of 3 volts minimum is normal. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST HX . | ||