OBD Guide

B3006

Hood Ajar Switch Circuit

B3006 is an OBD-II diagnostic trouble code meaning: Hood Ajar Switch Circuit. Common causes: malfunction of the hood opening sensor, open or short circuit in wiring harness. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Fault indicator is on
  • It is impossible to set the car alarm
  • False alarm

Causes

  • Malfunction of the hood opening sensor
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Mechanical damage to the sensor

How to Fix

  1. Check the condition of the hood opening sensor
  2. Inspect the wiring harness for damage
  3. Check the contacts in the sensor connector
  4. Replace sensor if necessary

Related codes

Error B3006 by Vehicle Brand

FAQ

What does the B3006 code mean?

B3006 is an OBD-II diagnostic trouble code that indicates: Hood Ajar Switch Circuit

What causes a B3006 error code?

The most common causes of B3006 include: Malfunction of the hood opening sensor; Open or short circuit in wiring harness; Poor contact in the sensor connector; Mechanical damage to the sensor.

How do I fix a B3006 diagnostic trouble code?

To fix B3006: Check the condition of the hood opening sensor. Inspect the wiring harness for damage. Check the contacts in the sensor connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3006?

Limited driving only, diagnose soon

How much does it cost to fix B3006?

The estimated repair cost for B3006 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat