OBD Guide
ENFRDEESPT

B2855

Crash Zone Sensor Circuit Short

B2855 is an OBD-II diagnostic trouble code meaning: Crash Zone Sensor Circuit Short. Common causes: wiring harness damage, impact zone sensor malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The passive safety system fault indicator is on
  • The passive safety system can be disabled
  • Possible false deployment of airbags

Causes

  • Wiring harness damage
  • Impact zone sensor malfunction
  • Short circuit in electronic control system
  • Contact corrosion

How to Fix

  1. Conduct a visual inspection of the wiring harness for damage.
  2. Check the integrity of the impact zone sensor
  3. Measure the resistance and voltage in the sensor circuit
  4. Replace damaged components
  5. Reset the error and check the system

Related codes

B2856B2857B2858

FAQ

What does the B2855 code mean?

B2855 is an OBD-II diagnostic trouble code that indicates: Crash Zone Sensor Circuit Short

What causes a B2855 error code?

The most common causes of B2855 include: Wiring harness damage; Impact zone sensor malfunction; Short circuit in electronic control system; Contact corrosion.

How do I fix a B2855 diagnostic trouble code?

To fix B2855: Conduct a visual inspection of the wiring harness for damage.. Check the integrity of the impact zone sensor. Measure the resistance and voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2855?

Limited driving only, diagnose soon

How much does it cost to fix B2855?

The estimated repair cost for B2855 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat