Park Brake Sensor/Switch Circuit

Where it lives

For P05E3, the sensor sits on the circuit this code reports. The description of P05E3 reports a fault at the sensor.

Check these first

• A contaminated park brake switch
• A worn or failed park brake switch
• A misadjusted park brake switch
• A loose or corroded connector
• An open or short in the park brake switch circuit

What to do next

1. Inspect the park brake switch and connector
2. Check the switch circuit for opens and shorts
3. Verify the park brake switch adjustment
4. Monitor the switch state on a scan tool
5. Replace the park brake switch if it does not change state
6. Clear the code and retest

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