Adaptive Cruise Control Brake Request Performance
A brake request from adaptive cruise control or AEB cannot be executed within the expected response time.
Affected components
- Abs control module
- Acc radar module
- Communication bus
Common causes
- High likelihood: Bus communication latency
- Medium likelihood: Hydraulic block slow to build pressure
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.