Purge Solenoid Valve - MPV
WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Airflow Inspection
Disconnect purge solenoid valve 2-pin harness connector and vacuum hoses. Purge solenoid valve is located by throttle body. See Figure. Ensure air does not flow through purge solenoid valve vacuum ports. Using fused jumper wires. Connect battery voltage to purge solenoid valve terminals. Air should pass through vacuum ports. If purge solenoid valve operates as specified, check for open or short circuit. Go to next step. If purge solenoid valve does not operate as specified, replace purge solenoid valve. - Open Circuit Inspection
Disconnect PCM 104-pin harness connector. Connect 104-Pin Breakout Box (49-UN01-130) to PCM harness connector only. See Figure. Check for continuity between following:- Purge solenoid valve harness connector terminal "B" and breakout box terminal No. 18 (Green/Black wire).
- Purge solenoid valve harness connector terminal "A" (White/Red wire) and main relay 4-pin harness connector terminal "D" (Yellow wire) through common connector.
If continuity is present, go to next step. If continuity is not present, repair open circuit in suspect wire or replace wire harness. See appropriate WIRING DIAGRAM under ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS.
- Short Circuit Inspection
Check for continuity between following:- Purge solenoid valve harness connector terminal "A" (White/Red wire) and power supply.
- Purge solenoid valve harness connector terminal "B" (Green/Black wire) and ground.
If continuity is present, repair short circuit in suspect wire or replace wire harness.