ABS Warning Light On - Nissan Altima 2019
The ABS warning light is constantly illuminated, indicating a fault in the anti-lock braking system. This means ABS functionality is disabled, but standard braking should still work. Diagnosis is needed to prevent potential safety issues.
Diagnosis Details
Possible Causes
Faulty wheel speed sensor (most common cause)
Damaged or corroded ABS tone ring
ABS module failure or wiring issue
Related OBD-II Codes
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What You Should Do
Use an OBD-II scanner with ABS capability to retrieve trouble codes.
Inspect wheel speed sensors and tone rings for damage or debris.
Check ABS fuse and wiring.
If codes point to a sensor, replace it; if module-related, professional diagnosis is recommended.
Estimated Repair Cost
$150 - $600 depending on cause (sensor replacement ~$150-$300, module repair ~$400-$600)
Typical range: $150 – $600
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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.