OBD Guide
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B1039

Crash Zone Sensor 1

B1039 is an OBD-II diagnostic trouble code meaning: Crash Zone Sensor 1. Common causes: damage to the impact zone sensor, open or shorted wiring harness. 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 does not work
  • False airbag deployments

Causes

  • Damage to the impact zone sensor
  • Open or shorted wiring harness
  • Contact corrosion
  • SRS control unit malfunction

How to Fix

  1. Diagnostics of the sensor circuit with an OBD-II scanner
  2. Checking the wiring harness and connectors
  3. Replacing the impact zone sensor if necessary
  4. Resetting the error and testing the system

Related codes

B1038B1040B1011

FAQ

What does the B1039 code mean?

B1039 is an OBD-II diagnostic trouble code that indicates: Crash Zone Sensor 1

What causes a B1039 error code?

The most common causes of B1039 include: Damage to the impact zone sensor; Open or shorted wiring harness; Contact corrosion; SRS control unit malfunction.

How do I fix a B1039 diagnostic trouble code?

To fix B1039: Diagnostics of the sensor circuit with an OBD-II scanner. Checking the wiring harness and connectors. Replacing the impact zone sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1039?

Do not drive — repair immediately

How much does it cost to fix B1039?

The estimated repair cost for B1039 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat