OBD Guide
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B1B73

Left Side Satellite Acceleration Sensor 2 Internal

B1B73 is an OBD-II diagnostic trouble code meaning: Left Side Satellite Acceleration Sensor 2 Internal. Common causes: acceleration sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • The passive safety system fault indicator is on
  • The side curtain airbag system may not deploy in a crash.
  • Possible false alarms of the system

Causes

  • Acceleration sensor malfunction
  • Wiring harness damage
  • Short circuit or open circuit
  • Problems with the electronic control unit

How to Fix

  1. Conduct diagnostics of the passive safety system
  2. Check the integrity of the wiring harness and connections
  3. Replace faulty acceleration sensor
  4. Test the system after repair

Related codes

B1B72B1B74B1B75

FAQ

What does the B1B73 code mean?

B1B73 is an OBD-II diagnostic trouble code that indicates: Left Side Satellite Acceleration Sensor 2 Internal

What causes a B1B73 error code?

The most common causes of B1B73 include: Acceleration sensor malfunction; Wiring harness damage; Short circuit or open circuit; Problems with the electronic control unit.

How do I fix a B1B73 diagnostic trouble code?

To fix B1B73: Conduct diagnostics of the passive safety system. Check the integrity of the wiring harness and connections. Replace faulty acceleration sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B73?

Do not drive — repair immediately

How much does it cost to fix B1B73?

The estimated repair cost for B1B73 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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