Mazda 6 Service Manual: Purge solenoid valve inspection

Airflow Inspection

Note

• Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Remove the purge solenoid valve. (See PURGE SOLENOID VALVE REMOVAL/INSTALLATION.)

3. Inspect airflow between the ports under the following conditions.

• If not as specified, replace the purge solenoid valve.
• If as specified, carry out the Circuit Open/Short Inspection.

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See F43 PCM REMOVAL/INSTALLATION.)

2. Inspect the following wiring harness for open or short (continuity check).

Open circuit

• If there is no continuity, the circuit is open. Repair or replace the harness.

- Purge solenoid valve terminal A (harness-side) and PCM terminal 4U

- Purge solenoid valve terminal B (harness-side) and main relay terminal C (harness-side)

Short circuit

• If there is continuity, the circuit is shorted. Repair or replace the harness.

- Purge solenoid valve terminal A (harness-side) and body GND

- Purge solenoid valve terminal B (harness-side) and power supply