OBD-II code · Chassis
C0609 Park Brake Switch Circuit
Generic fault on park brake switch circuit.
Is it safe to drive with C0609?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySwitch failed or wiring fault
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Park Brake Switch
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.