C0441critical severityChassis
AEB Brake Application Pressure Insufficient
on 2020 Mazda Mazda3 2.5L Skyactiv-G I4 (186 hp) · AWD
What this code means
The AEB system detected that it cannot generate sufficient brake pressure for emergency braking.
Symptoms
- AEB warning
- Reduced emergency braking capability
- Brake system warning
Common causes
- Brake fluid level low
- ABS pump motor weak
- Brake system hydraulic fault
- Brake booster performance issue
Diagnostic steps
- Check brake fluid level
- Test ABS pump motor output pressure
- Inspect brake system for leaks
- Test brake booster function
- Measure brake system maximum pressure capability
Repair notes
Repair brake system to restore full pressure capability. AEB requires maximum braking force.
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C0021
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C0023
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