OBD Guide

P024B

Charge Air Cooler Bypass Control A Stuck

P024B is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Bypass Control A Stuck. Common causes: mechanical jamming of the bypass valve, malfunction of the solenoid valve (solenoid). 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
  • Increased fuel consumption
  • Unstable operation at idle
  • Check engine light comes on
  • Noises from the turbocharging system

Causes

  • Mechanical jamming of the bypass valve
  • Malfunction of the solenoid valve (solenoid)
  • Damaged or clogged vacuum tubes
  • Problems with the wiring harness or connectors
  • Malfunction of the engine control unit (rare)

How to Fix

  1. Visual inspection of the bypass valve and its actuator
  2. Checking the solenoid valve and vacuum system
  3. Diagnostics of the electrical control circuit
  4. Cleaning or replacing the bypass valve
  5. Replacing damaged vacuum tubes or wiring harness
  6. Resetting the error and checking the system operation

Related codes

Error P024B by Vehicle Brand

FAQ

What does the P024B code mean?

P024B is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Bypass Control A Stuck

What causes a P024B error code?

The most common causes of P024B include: Mechanical jamming of the bypass valve; Malfunction of the solenoid valve (solenoid); Damaged or clogged vacuum tubes; Problems with the wiring harness or connectors.

How do I fix a P024B diagnostic trouble code?

To fix P024B: Visual inspection of the bypass valve and its actuator. Checking the solenoid valve and vacuum system. Diagnostics of the electrical control circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P024B?

Limited driving only, diagnose soon

How much does it cost to fix P024B?

The estimated repair cost for P024B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat