OBD Codes List

Diagnostic reference · P024A

P024A

Charge Air Cooler Bypass Control A Range/Performance

System
Injector circuits (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P024A means Charge Air Cooler Bypass Control A Range/Performance.

Check these first

  • A faulty intercooler bypass actuator A
  • Low or high voltage at the actuator
  • Corrosion in the actuator A connector
  • A restriction through the intercooler
  • A binding bypass flap

What to do next

  1. Command intercooler bypass actuator A with a scan tool and watch travel
  2. Check the supply voltage at the actuator A connector
  3. Inspect the actuator wiring and connector for corrosion
  4. Check the intercooler and bypass flap for a restriction or binding
  5. Replace bypass actuator A if it does not reach its commanded positions
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.