Stop Lamp Switch Circuit
The ABS or stability control module sees an implausible brake light switch signal. Stability and brake assist functions can be limited until the fault is cleared.
Affected components
- Brake light switch
- Abs control module
- Wiring
Common causes
- High likelihood: Brake light switch failed
- Medium likelihood: Switch misadjusted on pedal bracket
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Related codes
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.