Adaptive Cruise Control Module Internal Performance
The adaptive cruise control module has reported an internal performance fault — for example self-test failure, supply voltage out of range or invalid configuration. ACC is disabled.
Affected components
- Acc module
- Vehicle power supply
- Communication bus
Common causes
- High likelihood: ACC module internal fault
- Medium likelihood: Supply voltage out of range
- Low likelihood: Module configuration invalid after part exchange
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.