Damaged or disconnected wastegate solenoid connector; Chafed, broken, or shorted wiring in the solenoid control circuit; Failed wastegate solenoid (open or shorted internally); Corroded terminals at the solenoid or PCM connector; Faulty PCM driver for the solenoid circuit (less common); Vacuum or boost leak affecting solenoid operation (indirect cause)

DTC codes / P02xx · Fuel and air metering (injector circuits) / P0245

P0245Turbo/Super Charger Wastegate Solenoid 'A' Low

Q: What does code P0245 mean?

Turbo/Super Charger Wastegate Solenoid 'A' Low. P0245 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the wastegate solenoid 'A', which regulates boost pressure on a turbocharged or supercharged engine. The PCM commands the solenoid to open or close, and the circuit voltage falls below the expected threshold, often indicating a short to ground or an open circuit.

P0245 indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the wastegate solenoid 'A', which regulates boost pressure on a turbocharged or supercharged engine. The PCM commands the solenoid to open or close, and the circuit voltage falls below the expected threshold, often indicating a short to ground or an open circuit.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Reduced engine power or limp mode due to overboost protection
Poor acceleration or sluggish throttle response
Audible hissing or whistling from the turbocharger area
Decreased fuel economy
In rare cases, the engine may enter a fail-safe mode that limits RPM

Common causes, most likely first

Damaged or disconnected wastegate solenoid connector
Chafed, broken, or shorted wiring in the solenoid control circuit
Failed wastegate solenoid (open or shorted internally)
Corroded terminals at the solenoid or PCM connector
Faulty PCM driver for the solenoid circuit (less common)
Vacuum or boost leak affecting solenoid operation (indirect cause)

How to diagnose and fix it

Inspect the wastegate solenoid connector and wiring for damage, corrosion, or looseness
Check the solenoid resistance with a multimeter and compare to manufacturer specifications
Test the control circuit for continuity and short to ground using a wiring diagram
Verify that the solenoid receives power and ground signals when commanded by the PCM
Replace the wastegate solenoid if it fails electrical tests
Repair or replace damaged wiring and clear the code
If the circuit tests good, diagnose the PCM driver or seek professional assistance

Wastegate Solenoid Low Voltage Traps

A stuck-open wastegate can mimic a low-voltage solenoid code because the PCM sees unexpected boost behavior, so always check mechanical operation before replacing electrical parts.
Corrosion inside the solenoid connector is a frequent cause that is easily overlooked when only the solenoid itself is tested.
The code can set intermittently due to vibration or heat, so wiggle-test the harness while monitoring live data to catch an intermittent short.
Some vehicles use a wastegate solenoid that is integrated into the turbocharger assembly, making replacement more involved than a standalone solenoid.
A low-voltage code does not always mean the solenoid is faulty; a shorted wire or poor ground can produce the same symptom.

Can I keep driving with P0245?

You can usually drive the vehicle with this code, but avoid aggressive acceleration or heavy load because the engine may enter limp mode or overboost protection. Have the fault diagnosed soon to prevent potential turbocharger damage.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.