OBD-II Code
P0243
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$120–$480
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
P0243 reports an electrical fault in the turbocharger wastegate solenoid A control circuit, meaning the PCM is commanding the solenoid but seeing no current flow, a short, or an open.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP0243 reports an electrical fault in the turbocharger wastegate solenoid A control circuit, meaning the PCM is commanding the solenoid but seeing no…
P0243 reports an electrical fault in the turbocharger wastegate solenoid A control circuit, meaning the PCM is commanding the solenoid but seeing no current flow, a short, or an open.
Begin with the cheapest diagnostic
unplug the solenoid connector and measure resistance across the two pins, which should read between 14 and 30 ohms on most domestic and European applications (Ford EcoBoost spec is 11-15 ohms cold, VW N75 is 25-35 ohms); an open or shorted reading condemns the solenoid for about $60-$180. Next, verify the PCM-side circuit with the connector unplugged, key on, looking for battery voltage on the supply pin and a PCM-driven ground pulse on the control pin. The expensive misdiagnosis is replacing the turbo actuator or entire turbocharger when a $90 solenoid, a chafed harness near the heat shield, or a melted connector was the only issue.
Vehicle-specific patterns2006-2014 VW/Audi 2.0T N75 valve fails by diaphragm rupture, throwing P0243 with overboost cuts addressed by superseded part 06H 906 627; 2011-2016 F…
- 2006-2014VW/Audi 2.0T N75 valve fails by diaphragm rupture, throwing P0243 with overboost cuts addressed by superseded part 06H 906 627;
- 2011-2016Ford F-150 3.5L EcoBoost wastegate control solenoid mounts on the driver-side valve cover and cooks from exhaust manifold radiant heat (TSB 16-0083);
- 2007-2013BMW 335i N54 uses a vacuum-controlled wastegate solenoid that sticks open from oil ingestion through the PCV;
- 2010-2015Hyundai Sonata 2.0T solenoid harness chafes against the turbo heat shield bracket.
Estimated repair$120 to $480.
Look up another code
More free tools