DTC P0443: Notes
DTC P0443 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0443 |
Purge solenoid valve circuit problem |
| DETECTION CONDITION |
- The PCM monitors the input voltages from the purge solenoid valve. If the voltage at PCM terminal 2AN remains low or high, the PCM determines that the purge solenoid valve circuit has malfunction.
Diagnostic support note
- This is a continuous monitor (CCM).
- 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 the first drive cycle.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- Connector or terminal malfunction
- Short to ground in wiring harness between purge solenoid valve terminal A and PCM terminal 2AN
- Open circuit in wiring harness between main relay and purge solenoid valve terminal B
- Open circuit in wiring harness between purge solenoid valve terminal A and PCM terminal 2AN
- Short to power supply in wiring harness between purge solenoid valve terminal A and PCM terminal 2AN
- PCM malfunction
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