B0100Airbag/SRS
Electronic Front End Sensor Fault
B0100 indicates a fault with a front crash (front end) sensor used by the SRS module to detect frontal impacts. The signal is missing or out of range.
🚗 Yes, but frontal airbag timing may be affected, so address it promptly.
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🎯 Top Causes, Ranked by Likelihood
#1Faulty front crash sensor$100-$350
The front-mounted impact sensor fails or is damaged.
#2Corroded sensor connector$0-$150
Front sensors sit in a wet area and connectors corrode.
#3Damaged front harness$100-$400
Front-end damage or road debris breaks the sensor wiring.
🩺 Common Symptoms
- Airbag/SRS warning light on
- Frontal airbags may deploy incorrectly
- Fault after front-end minor impact
- Stored front sensor code
💰 Repair Cost: DIY vs Shop
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🔧 How to Diagnose B0100
1Disarm the SRS system per the service manual
2Inspect the front sensor connector for corrosion or water
3Check the front harness for damage
4Replace the front crash sensor if wiring checks out
❓ Frequently Asked Questions
Where is the sensor for B0100?
Usually behind the front bumper or on the radiator support.
Can I drive with B0100?
Yes, but frontal airbag detection may be impaired, so fix it soon.
What causes B0100?
A failed front crash sensor or a corroded connector from moisture.
🔗 Related Codes
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