What Does B0092 Mean?
This code indicates a malfunction in the second impact or pressure sensor on the left side of the vehicle's supplemental restraint system (SRS/airbag system). The airbag control module has detected an internal fault, communication error, or out-of-range signal from this specific sensor. This sensor typically monitors side impact forces to determine when to deploy side airbags or curtain airbags during a collision.
Safety Warning
This is a critical safety concern as the side airbags may not deploy properly in a side-impact collision, significantly increasing injury risk to occupants. The vehicle should be repaired immediately and driving should be minimized until the system is restored to proper operation.
Common Causes
45%
Faulty left side impact sensor or internal sensor failure
30%
Damaged wiring harness or corroded connector to the left side sensor
15%
Poor ground connection or damaged ground wire for the sensor circuit
10%
Airbag control module malfunction or internal processing error
Diagnostic Steps
1
Step 1: Visually inspect the left side B-pillar, door sill, and seat area for the side impact sensor location. Check for physical damage, water intrusion, or obvious connector issues at the sensor location
2
Step 2: Using a digital multimeter, check the sensor connector for proper voltage supply (typically 5V reference) and ground integrity. Measure resistance between ground pin and chassis ground (should be less than 1 ohm)
3
Step 3: Disconnect the left side restraint sensor 2 connector and inspect pins for corrosion, bent terminals, or moisture. Check sensor connector resistance values according to manufacturer specifications (typically 500-2000 ohms at room temperature)
4
Step 4: If wiring and connector are intact, substitute a known-good left side impact sensor or perform voltage signal output test on the sensor while simulating movement to verify sensor operation
5
Step 5: Clear codes and perform an SRS system self-test using the scan tool. Monitor live data for sensor signal voltage during the test to confirm proper communication
6
Step 6: If all sensor and wiring checks pass, verify airbag control module functionality by checking for other system faults and consider module replacement or reprogramming if multiple sensor circuits show subfaults
Estimated Repair Cost
$200 - $800
Parts + labor, varies by vehicle and location
This code indicates a malfunction in the second impact or pressure sensor on the left side of the vehicle's supplemental restraint system (SRS/airbag system). The airbag control module has detected an internal fault, communication error, or out-of-range signal from this specific sensor. This sensor ...
The most common cause of B0092 (Left Side Restraints Sensor 2 (Subfault)) is: Faulty left side impact sensor or internal sensor failure
Typical repair costs for B0092 range from $200 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
This is a critical safety concern as the side airbags may not deploy properly in a side-impact collision, significantly increasing injury risk to occupants. The vehicle should be repaired immediately and driving should be minimized until the system is restored to proper operation.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B0092 to identify the root cause.
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Quick Info
Category
Body
System
Supplemental Restraint System (SRS/Airbag)
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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