Electric Park Brake Switch Circuit Malfunction
The electric park brake (EPB) module has detected an implausible signal from the operator switch. The EPB cannot be reliably applied or released by the driver until the fault is corrected.
Affected components
- Epb switch
- Epb module
- Switch wiring
Common causes
- High likelihood: EPB switch failed
- Medium likelihood: Wiring or connector fault
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.