Soft Brake Pedal During Hard Braking
The brake pedal feels soft or spongy when applying hard braking, indicating a potential issue with the brake hydraulic system or air in the brake lines.
Diagnosis Details
Possible Causes
Air in the brake fluid (contaminated or low fluid level)
Worn brake pads or rotors causing reduced braking efficiency
Brake fluid leak (master cylinder, caliper, or line)
Related OBD-II Codes
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What You Should Do
Check brake fluid level and condition.
Inspect for leaks around master cylinder, calipers, and brake lines.
Bleed the brake system to remove air.
If fluid is dark or low, flush and replace.
Inspect brake pads and rotors for wear.
If problem persists, have a professional diagnose the master cylinder or ABS system.
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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.
