Left Front Side Airbag Circuit Low
The left front side airbag sensor circuit has low voltage or is shorted to ground.
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 sensor that detects a crash for the left front airbag isn't sending enough voltage to the computer, meaning it might not trigger the airbag properly.
What the computer is actually seeing
The airbag control module expects a voltage between 0.5 volts and 2.5 volts; if it sees less than 0.5 volts, it triggers this fault code.
What a healthy reading looks like
0.5 to 2.5 volts for the side airbag sensor; continuity should exist between the airbag module and sensor.
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. Visually inspect the harness and connectors for the left front side airbag; look for frayed wires or corrosion.
- 22. Use a multimeter to check the voltage at the airbag sensor connector; you should see 0.5 to 2.5 volts with the key on, engine off.
- 3 - If voltage is below 0.5 volts, go to step 3. If normal, replace the airbag control module.
- 43. Test for continuity between the airbag control module and the left front side airbag sensor; look for less than 5 ohms.
- 5 - If there's no continuity, repair or replace the wiring harness. If continuity is good, replace the side airbag sensor.
Common causes
- Faulty left front side airbag sensor
- Damaged wiring or poor connection in the harness
- Short to ground in airbag circuit
- Faulty airbag control module
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not safe to drive because the airbag may not deploy in a crash.
Will this code come back after clearing?
If the cause is not repaired, yes, the code will likely return.
Why does this code pair with other B codes?
B codes point to issues related to the body control system, and multiple faults can occur from common wiring issues.
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