P0443
EVAP Purge Control Valve Circuit Malfunction
low
i Description
The EVAP purge control valve circuit has an electrical fault. The ECU cannot properly control the purge valve.
? Common Causes
- Faulty purge valve solenoid
- Open or short in wiring
- Corroded connector
- ECU driver fault (rare)
! Symptoms
- Check engine light
- No noticeable driveability symptoms in most cases
# Diagnostic Steps
- Test purge valve solenoid resistance
- Check wiring continuity
- Inspect connector
- Command purge valve with scan tool and verify operation
⚙ Typical Fix
Replace the purge valve or repair wiring.
Parts Needed
EVAP purge valve
Estimated Cost
$50-$250
↔ Related Codes
Q Frequently Asked Questions
Yes. No effect on driveability. Fix when convenient or before an emissions test.
☞ Learn More
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