OBD Guide
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B1928

Air Bag Safing Sensor Output Circuit Failure

B1928 is an OBD-II diagnostic trouble code meaning: Air Bag Safing Sensor Output Circuit Failure. Common causes: open or short circuit in wiring harness, sensor contact corrosion. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Airbag does not deploy in an accident
  • Restraint system disabled

Causes

  • Open or short circuit in wiring harness
  • Sensor contact corrosion
  • Safety sensor malfunction
  • Problems with the airbag control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the connections and contacts of the sensor
  3. Test the safety sensor with a multimeter
  4. Replace sensor or wiring harness if necessary
  5. Reset the error using an OBD-II scanner

Related codes

B1927B1929B1930

FAQ

What does the B1928 code mean?

B1928 is an OBD-II diagnostic trouble code that indicates: Air Bag Safing Sensor Output Circuit Failure

What causes a B1928 error code?

The most common causes of B1928 include: Open or short circuit in wiring harness; Sensor contact corrosion; Safety sensor malfunction; Problems with the airbag control unit.

How do I fix a B1928 diagnostic trouble code?

To fix B1928: Check wiring harness for damage. Check the connections and contacts of the sensor. Test the safety sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1928?

Do not drive — repair immediately

How much does it cost to fix B1928?

The estimated repair cost for B1928 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat