OBD Guide
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B1617

Lost Communication with Front Airbag Sensor Left

B1617 is an OBD-II diagnostic trouble code meaning: Lost Communication with Front Airbag Sensor Left. Common causes: broken or damaged wiring harness, oxidation of sensor contacts. 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
  • SRS does not activate during testing
  • Error B1617 in fault memory

Causes

  • Broken or damaged wiring harness
  • Oxidation of sensor contacts
  • Left shock sensor malfunction
  • Problems with the SRS module

How to Fix

  1. Check the integrity of the wiring harness to the left sensor
  2. Clean sensor contacts and connectors
  3. Test the sensor for correct operation
  4. If necessary, replace the sensor or wiring harness
  5. Reset error and check SRS system

Related codes

B1618B1620B1000

FAQ

What does the B1617 code mean?

B1617 is an OBD-II diagnostic trouble code that indicates: Lost Communication with Front Airbag Sensor Left

What causes a B1617 error code?

The most common causes of B1617 include: Broken or damaged wiring harness; Oxidation of sensor contacts; Left shock sensor malfunction; Problems with the SRS module.

How do I fix a B1617 diagnostic trouble code?

To fix B1617: Check the integrity of the wiring harness to the left sensor. Clean sensor contacts and connectors. Test the sensor for correct operation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1617?

Do not drive — repair immediately

How much does it cost to fix B1617?

The estimated repair cost for B1617 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat