DTC P0443: Notes
DTC P0443 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0443 |
EVAP control system purge control valve circuit malfunction |
| 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 an 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.
- DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- Connector or terminal malfunction
- Short to ground between purge solenoid valve terminal B and PCM terminal 1BF
- Open circuit between main relay terminal C and purge solenoid valve terminal A
- Short to power circuit between purge solenoid valve terminal B and PCM terminal 1BF
- Open circuit between purge solenoid valve terminal B and PCM terminal 1BF
- PCM malfunction
|
|
|