Turbocharger/Supercharger Boost Sensor C Circuit High

Where it lives

For P25F5, the circuit described runs through the sensor. The description of P25F5 reports a fault at the sensor.

Check these first

• A short to voltage on the boost sensor C signal wire
• A boost sensor C that reads above its range
• A loose or corroded boost sensor C connector
• An open in the boost sensor C ground circuit

What to do next

1. Read boost sensor C pressure on a scan tool
2. Test the sensor C signal wire for a short to voltage
3. Check the sensor C ground circuit for an open
4. Inspect the boost sensor C connector terminals
5. Replace boost sensor C if the circuit tests good
6. Clear the code and retest

Look up another code