OBD Guide

C05B6

Brake Booster Temperature Sensor C Circuit Range/Performance

C05B6 is an OBD-II diagnostic trouble code meaning: Brake Booster Temperature Sensor C Circuit Range/Performance. Common causes: brake booster temperature sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine Light Is On
  • Reduced brake efficiency
  • Problems with the brake booster

Causes

  • Brake booster temperature sensor malfunction
  • Wiring harness damage
  • Poor contact in the sensor connector
  • Software error in the control unit

How to Fix

  1. Check the condition of the brake booster temperature sensor
  2. Inspect the wiring harness and connectors for damage
  3. Check the sensor circuit using a multimeter
  4. Replace sensor if necessary
  5. Reset the error and check for its reappearance

Related codes

Error C05B6 by Vehicle Brand

FAQ

What does the C05B6 code mean?

C05B6 is an OBD-II diagnostic trouble code that indicates: Brake Booster Temperature Sensor C Circuit Range/Performance

What causes a C05B6 error code?

The most common causes of C05B6 include: Brake booster temperature sensor malfunction; Wiring harness damage; Poor contact in the sensor connector; Software error in the control unit.

How do I fix a C05B6 diagnostic trouble code?

To fix C05B6: Check the condition of the brake booster temperature sensor. Inspect the wiring harness and connectors for damage. Check the sensor circuit using a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C05B6?

Limited driving only, diagnose soon

How much does it cost to fix C05B6?

The estimated repair cost for C05B6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat