B0140Critical SeveritySafety

Frontal Crash Sensor Circuit Malfunction A

What This Means

The frontal crash sensor circuit malfunction has been detected. This body control module code affects the safety system component operation.

Common Symptoms

Safety warning light
Frontal Crash Sensor not working
Warning light on
Reduced functionality

Common Causes

Failed frontal crash sensor component
Wiring damage
Connector corrosion
BCM circuit failure
Mechanical obstruction

Estimated Repair Cost

$200 – $800

Parts and labor (varies by vehicle and location)

Difficulty:Professional

Need This Fixed?

Find certified mechanics near you who can diagnose and repair B0140.

Find a Shop Near You

Search Another Code

For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.