C0609
Park Brake Switch Circuit
Generic fault on park brake switch circuit.
Generic fault on park brake switch circuit.
Common causes
- high
Switch failed or wiring fault
One of the most commonly reported causes for this code — check this first.
Typical part cost: $40-330
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does C0609 mean?
C0609 means "Park Brake Switch Circuit". It is a generic OBD-II code that points to a fault in the chassis.
What are the most common causes of C0609?
switch failed or wiring fault — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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