Cruise Control Brake Switch
The cruise control or chassis module has detected an implausible signal from the dedicated cruise control brake switch. This switch is independent from the stop lamp switch and disengages cruise control when the driver brakes.
Affected components
- Cruise brake switch
- Cruise control module
- Brake pedal assembly
Common causes
- High likelihood: Cruise control brake switch failed or misadjusted
- Medium likelihood: Wiring or connector fault
- Low likelihood: Internal cruise control module 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.