EVAP Leak Detection Pump Control Circuit Open
The control circuit to the EVAP leak-detection pump is open. Without that pump the ECU cannot pressurise the fuel-vapour system to test for leaks.
Affected components
- Evap leak detection pump
- Evap pump wiring
Common causes
- High likelihood: Leak detection pump failed
- Medium likelihood: Wiring open to pump
- Low likelihood: Pin pushed back out of connector body
Possible symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.