OBD Guide
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B1944

Air Bag Crash Sensor 1 Ground Circuit Open

B1944 is an OBD-II diagnostic trouble code meaning: Air Bag Crash Sensor 1 Ground Circuit Open. Common causes: broken or damaged wiring harness, oxidation of contacts in sensor connectors. 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
  • The passive safety system can be disabled
  • Error B1944 is stored in the control unit memory

Causes

  • Broken or damaged wiring harness
  • Oxidation of contacts in sensor connectors
  • Shock sensor malfunction
  • Body weight problems

How to Fix

  1. Check the integrity of the wiring harness to the shock sensor
  2. Clean the contacts in the sensor connectors
  3. Check the resistance and voltage at the sensor
  4. If necessary, replace the sensor or wiring harness
  5. Reset the error and check the system

Related codes

B1945B1946B1947

FAQ

What does the B1944 code mean?

B1944 is an OBD-II diagnostic trouble code that indicates: Air Bag Crash Sensor 1 Ground Circuit Open

What causes a B1944 error code?

The most common causes of B1944 include: Broken or damaged wiring harness; Oxidation of contacts in sensor connectors; Shock sensor malfunction; Body weight problems.

How do I fix a B1944 diagnostic trouble code?

To fix B1944: Check the integrity of the wiring harness to the shock sensor. Clean the contacts in the sensor connectors. Check the resistance and voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1944?

Do not drive — repair immediately

How much does it cost to fix B1944?

The estimated repair cost for B1944 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat