OBD Guide

P0249

Turbocharger/Supercharger Wastegate Actuator B Low

P0249 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Wastegate Actuator B Low. Common causes: bypass valve actuator malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Reduced engine power
  • Unstable engine operation
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Bypass valve actuator malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check wiring harness and connectors for damage
  2. Check the resistance and operation of the actuator
  3. Check the voltage on the actuator
  4. If necessary, replace the actuator or repair the wiring harness

Related codes

Error P0249 by Vehicle Brand

FAQ

What does the P0249 code mean?

P0249 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Wastegate Actuator B Low

What causes a P0249 error code?

The most common causes of P0249 include: Bypass valve actuator malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Engine control unit (ECU) malfunction.

How do I fix a P0249 diagnostic trouble code?

To fix P0249: Check wiring harness and connectors for damage. Check the resistance and operation of the actuator. Check the voltage on the actuator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0249?

Limited driving only, diagnose soon

How much does it cost to fix P0249?

The estimated repair cost for P0249 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat