OBD Guide

P022A

Charge Air Cooler Bypass Control A Circuit /Open

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

Symptoms

  • Reduced engine power
  • Unstable idling
  • Increased fuel consumption

Causes

  • Broken or damaged wiring harness
  • Malfunction of the solenoid valve (solenoid)
  • Intercooler problems
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the wiring harness for breaks and damage
  2. Check the resistance and performance of the solenoid
  3. Check the intercooler for serviceability
  4. Scan the engine control module for other errors

Related codes

Error P022A by Vehicle Brand