Powertrain
generic / SAE
P2401
EVAP Leak Detection Pump Control Circuit Low
Drive voltage on the leak-detection pump line is below the lower limit. Often a short to ground in the harness.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 01
Possible causes
- Drive line shorted to ground high
- Pump internal short medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–500 €
- Estimated time: 0.5–2 h
- Component: evap leak detection pump
- Component: evap pump wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012