DTC code
P0235
Turbocharger/Supercharger Boost Sensor A Circuit
Technical guide
Symptoms
- Illuminated warning lights
- potential limp mode activation
Probable causes
- Faulty wiring
- connectors
- or corrosion in boost control circuits
- defective boost pressure sensor
- damaged inlet ducting between turbocharger and manifold
- worn turbocharger or supercharger components
- malfunctioning wastegate or wastegate actuator
- failing PCM (rare)
Diagnostic steps
- Verify the specific sensor location using vehicle-specific service manual.
- Inspect wiring and connectors for damage or corrosion.
- Test boost pressure sensor resistance and voltage output.
- Examine inlet ducting for splits or perforations.
- Evaluate wastegate operation.
- Replace faulty components as diagnostics indicate.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on P0235
Nothing confirmed yet for this code. No guess is offered on purpose.
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