OBD Guide
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B1C13

Driver Active Headrest Control Circuit High

B1C13 is an OBD-II diagnostic trouble code meaning: Driver Active Headrest Control Circuit High. Common causes: short circuit in head restraint control circuit, headrest solenoid malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The airbag fault light is on
  • Error message on the dashboard
  • Malfunction of the active head restraint system

Causes

  • Short circuit in head restraint control circuit
  • Headrest solenoid malfunction
  • Wiring harness damage
  • Oxidation of contacts
  • Problems with the airbag control unit

How to Fix

  1. Check the wiring harness for damage and short circuits.
  2. Check the resistance of the head restraint solenoid
  3. Clean contacts and connectors
  4. Test the airbag control unit
  5. Replace solenoid or wiring harness if necessary

Related codes

B1C12B1C14B1000

FAQ

What does the B1C13 code mean?

B1C13 is an OBD-II diagnostic trouble code that indicates: Driver Active Headrest Control Circuit High

What causes a B1C13 error code?

The most common causes of B1C13 include: Short circuit in head restraint control circuit; Headrest solenoid malfunction; Wiring harness damage; Oxidation of contacts.

How do I fix a B1C13 diagnostic trouble code?

To fix B1C13: Check the wiring harness for damage and short circuits.. Check the resistance of the head restraint solenoid. Clean contacts and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1C13?

Limited driving only, diagnose soon

How much does it cost to fix B1C13?

The estimated repair cost for B1C13 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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