Chassis
generic / SAE
C0578
Park Brake Switch Stuck Open
The EPB module has detected that the park brake operator switch remains in the open (released) state when an apply request is expected. Operation of the EPB by the driver is restricted.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number5 / 78
Possible causes
- EPB switch contacts stuck open high
- Wiring break in switch circuit medium
- Carbon or debris buildup preventing free movement low
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–300 €
- Estimated time: 0.3–1.5 h
- Component: epb switch
- Component: epb module
- Component: switch wiring
Sources
References
sae:J2012