Turbocharger/Supercharger Boost Sensor A Circuit

Where it lives

For P0235, the circuit described runs through the sensor. The description of P0235 reports a fault at the sensor.

Check these first

• A failed turbocharger boost sensor A
• An open or short in the sensor A wiring
• A corroded sensor A connector
• A boost leak at the intake
• A faulty ECM input for sensor A

What to do next

1. Read turbocharger boost sensor A on a scan tool
2. Inspect the sensor A connector and wiring
3. Check the boost plumbing for leaks
4. Test the sensor A signal circuit
5. Replace turbocharger boost sensor A if out of range
6. Clear the code and retest

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