DTC P0443:00: Notes

DTC P0443:00	Purge solenoid valve circuit problem
DETECTION CONDITION	The PCM monitors the purge solenoid valve control signal voltage and current. If the following conditions are met, the PCM determines that there is the purge solenoid valve control circuit problem. The PCM turns the purge solenoid valve off, but the voltage of the purge solenoid valve control signal remains low. The PCM turns the purge solenoid valve on, but the current of the purge solenoid valve control signal remains high. Diagnostic support note This is a continuous monitor (CCM). The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition. FREEZE FRAME DATA is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Purge solenoid valve connector or terminal malfunction Short to ground or open circuit in purge solenoid valve power supply circuit Short to ground in wiring harness between main relay terminal D and purge solenoid valve terminal B ENGINE 10 A fuse malfunction Open circuit in wiring harness between main relay terminal D and purge solenoid valve terminal B Short to ground in wiring harness between purge solenoid valve terminal A and PCM terminal 2C PCM connector or terminal malfunction Short to power supply in wiring harness between purge solenoid valve terminal A and PCM terminal 2C Purge solenoid valve malfunction Open circuit in wiring harness between purge solenoid valve terminal A and PCM terminal 2C PCM malfunction