Front Impact Sensor Fault
There’s an issue with the front impact sensor system.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The front impact sensor in your vehicle isn't giving the right signals, which means the airbag system might not work properly during a crash.
What the computer is actually seeing
The airbag control module (ACM) is receiving a faulty voltage or resistance reading from the front impact sensor circuit, often less than 2 ohms when it should be around 10 to 20 ohms.
What a healthy reading looks like
Front impact sensor circuit resistance should read between 10 and 20 ohms; voltage should be around 5 volts when the sensor is functioning correctly.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect front impact sensor wiring and connectors for damage or corrosion. If damaged, repair or replace as necessary.
- 22. Use a multimeter to check the resistance of the front impact sensor. It should be between 10-20 ohms; if not, replace the sensor.
- 33. Check the voltage at the sensor connector with the key on and engine off; should read around 5 volts. If no voltage, trace back to the ACM for issues.
- 44. Clear the code and take the vehicle for a drive to see if the code returns. If it does, replace the front impact sensor.
Common causes
- Poor electrical connection at the sensor
- Faulty front impact sensor
- Damaged wiring or connectors in the sensor circuit
- Fault in the airbag control module (ACM)
Typical repair cost
$$$ (approximately $200-$600)
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's advisable to fix this issue soon, as the airbag may not deploy during an accident.
Will this code come back?
Yes, if the underlying issue isn't resolved, the code will likely return.
Why does this code pair with other fault codes?
Multiple codes may indicate a systemic issue within the airbag system that affects multiple components.
Working a real vehicle right now?
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