DTC P0443-00: Purge Solenoid Valve System: Circuit Malfunction (PYUL)
WARNING: This page is about a different variant/trim than selected.
P0443: 00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Purge solenoid valve system: Circuit malfunction |
| Detection condition |
- The purge control voltage relative to the PCM control status is low or high.
|
| Fail-safe |
- Inhibits engine-stop by i-stop control.
|
| Vehicle status when DTCs are output |
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Perform the KOER self test. (See DTC INSPECTION
.)
|
| Inspection/action procedure |
- Proceed with the inspection/action in the order from Step 1 below.
- After part repair or replacement, perform the repeatability verifi cation procedure and perform a DTCinspection. (See DTC INSPECTION
)
- If the DTC inspection indicates the same DTC again, go to the next step.
- Inspect the wiring harness (including connector/terminal) between the main relay and the purge solenoid valve for a malfunction.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between main relay and purge solenoid valve
Referred to service information item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect the wiring harness (including connector/terminal) between the purge solenoid valve and the PCM.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between purge solenoid valve and PCM
Referred to service information item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect the purge solenoid valve
Purpose/reason (possible cause)
Purge solenoid valve malfunction
Referred to service information item
(See PURGE SOLENOID VALVE INSPECTION
)
- Replace the PCM.
Purpose/reason (possible cause)
PCM malfunction (no other possible malfunction considered)
Referred to service information item
(See PCM REMOVAL/INSTALLATION
)
|
Refer to SYSTEM WIRING DIAGRAMS
.
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
Battery |
| 2 |
Main relay |
| 3 |
Purge solenoid valve |
| 4 |
PCM |
| Function explanation (DTC detection outline) |
|