Brake Booster Temperature Sensor A Circuit High

Where it lives

For P25C7, the sensor sits on the circuit this code reports. The description of P25C7 reports a fault at the sensor.

Check these first

• An open in the brake booster temperature sensor A circuit
• A failed sensor A reading high
• An open ground on sensor A
• A loose or corroded sensor A connector

What to do next

1. Inspect the sensor A connector and wiring
2. Check the sensor A signal circuit for an open
3. Test the sensor A ground for an open
4. Compare the sensor A reading to ambient
5. Replace the brake booster temperature sensor A if it drives high
6. Clear the code and retest

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