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2012 LEXUS CT 200H

1.8L I4 Hybrid•FWD•AUTOMATIC•hybrid
1 active safety recall on this vehicle — view recalls
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Repairs0Labor607Torque4694Fluid6DTC906Battery0Maintenance0Recalls1
P1512critical severityPowertrain

Boost Pressure High

on 2012 Lexus CT 200h 1.8L I4 Hybrid · FWD

What this code means

Turbo boost pressure exceeds maximum limit, indicating overboosting.

Symptoms

  • CEL
  • Engine knock
  • Excessive power
  • Potential engine damage
  • Reduced power mode

Common causes

  • Stuck-closed wastegate
  • Faulty boost solenoid
  • Disconnected vacuum line
  • Faulty boost sensor

Diagnostic steps

  1. Check wastegate operation
  2. Test boost solenoid
  3. Inspect vacuum lines
  4. Monitor boost with gauge

Repair notes

Repair wastegate or boost control system.

Other Powertrain codes on this vehicle

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