Soft Brake Pedal Diagnosis
A consistently soft brake pedal indicates a problem in the hydraulic brake system, likely air in the lines, a fluid leak, or a failing master cylinder. This reduces braking effectiveness and poses a safety risk.
Diagnosis Details
Possible Causes
Air in the brake lines (contaminated or low brake fluid)
Brake fluid leak (at caliper, wheel cylinder, or line)
Faulty master cylinder (internal bypass or worn seals)
Related OBD-II Codes
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What You Should Do
Check brake fluid level and condition.
Inspect for visible leaks around all wheels and under the vehicle.
If fluid is low or dark, bleed the brakes to remove air.
If no improvement, test the master cylinder for internal leakage.
Do not drive until brakes are firm.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
