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2000 SUBARU OUTBACK

2.5L H4•AWD•CVT•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor546Torque3603Fluid9DTC674Battery1Maintenance0Recalls2
P1244high severityPowertrain

Wastegate Control Solenoid Valve Low Input

on 2000 Subaru Outback 2.5L H4 · AWD

What this code means

The PCM has detected a low-input signal from the wastegate control solenoid valve circuit. This solenoid regulates boost pressure on turbocharged Subaru engines by controlling the wastegate.

Symptoms

  • Check Engine Light
  • Overboosting condition
  • Boost fluctuation
  • Loss of power under boost
  • Turbo system warning

Common causes

  • Faulty wastegate control solenoid
  • Wiring short to ground in solenoid circuit
  • Corroded solenoid connector
  • Boost control system vacuum leak
  • PCM driver circuit failure

Diagnostic steps

  1. Test wastegate solenoid resistance
  2. Check solenoid wiring for shorts to ground
  3. Inspect solenoid connector for corrosion
  4. Verify boost pressure readings on scan tool
  5. Command solenoid with scan tool and verify operation

Repair notes

Replace the wastegate control solenoid if faulty; repair wiring shorts in the solenoid circuit.

Other Powertrain codes on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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