P2401moderate severityPowertrain
EVAP Leak Detection Pump Control Circuit Low
on 2021 Subaru Legacy 2.5L H4 · AWD
What this code means
Low voltage on the EVAP leak detection pump control circuit.
Symptoms
- Check engine light
- Failed EVAP test
Common causes
- Short to ground
- Damaged harness
- Pump motor failure
Diagnostic steps
- Measure circuit voltage
- Check for shorts to ground
- Test pump
Repair notes
Repair short or replace pump.
Other Powertrain codes on this vehicle
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P0002
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P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1