OBD Guide

C028B

Hand Brake Motor Position Sensor Signal

C028B is an OBD-II diagnostic trouble code meaning: Hand Brake Motor Position Sensor Signal. Common causes: handbrake motor position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The handbrake fault indicator lights up
  • The handbrake may not engage or disengage
  • Loss of effectiveness of the handbrake system

Causes

  • Handbrake motor position sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Handbrake motor malfunction

How to Fix

  1. Check the condition of the wiring harness and connectors
  2. Check the resistance of the position sensor
  3. Replace the position sensor if it is faulty
  4. Check the operation of the handbrake motor

Related codes

Error C028B by Vehicle Brand

FAQ

What does the C028B code mean?

C028B is an OBD-II diagnostic trouble code that indicates: Hand Brake Motor Position Sensor Signal

What causes a C028B error code?

The most common causes of C028B include: Handbrake motor position sensor malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Handbrake motor malfunction.

How do I fix a C028B diagnostic trouble code?

To fix C028B: Check the condition of the wiring harness and connectors. Check the resistance of the position sensor. Replace the position sensor if it is faulty. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C028B?

Do not drive — repair immediately

How much does it cost to fix C028B?

The estimated repair cost for C028B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat