P0245: Turbocharger/Supercharger Wastegate Actuator A Circuit Low. Identify the correct device before testing.
Meaning, symptoms, causes and checks
Wastegate A control has a low electrical monitor condition. Diagnose the circuit; low boost may be an effect, not the definition of P0245.
Affected system: Powertrain
Symptoms
- Engine warning lamp; limited power or weak acceleration.
- Irregular boost response; sometimes only a stored code without clear symptoms.
Possible causes
- Ground short or inadequate supply in the monitored circuit, depending on architecture.
- Actuator/solenoid electrical fault; investigate the driver only after circuit checks.
What to check
- Identify wastegate actuator or solenoid A in engine documentation and read the full subcode; A alone does not identify its location.
- Save failure data and related pressure/position codes; determine whether the fault is constant or command-dependent.
- Inspect the hot-area connector, harness supports and heat damage; check the specified supply and ground.
- Test for ground shorts and supply voltage drops under the specified load, protecting modules as instructed.
- Verify operation after repair by the OEM method; rod adjustment or turbo replacement does not replace circuit diagnosis.
Also written as: P0245-00, P024500, PO245 (some scan tools add the fault-type byte, e.g. -00).