DTC P0443:00: Notes

DTC P0443:00 (MZR 1.5) DETECTION CONDITION AND POSSIBLE CAUSES

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 during first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Purge solenoid valve connector or terminals malfunction Purge solenoid valve malfunction Short to ground in wiring harness between the following terminals: Purge solenoid valve terminal A-PCM terminal 2I Purge solenoid valve terminal B-PCM terminal 2S PCM connector or terminals malfunction Short to power supply in wiring harness between purge solenoid valve terminal B and PCM terminal 2S Purge solenoid valve circuits are shorted to each other Open circuit in wiring harness between the following terminals: Purge solenoid valve terminal A-PCM terminal 2I Purge solenoid valve terminal B-PCM terminal 2S PCM malfunction