FixVault

How to Substitute the PCM

  1. Remove the PCM from the vehicle.
  2. Install a known-good PCM in the vehicle.
  3. Rewrite the immobilizer code with the PCM replacement procedure on the HDS. It allows you to start the engine.
  4. After completing your tests, reinstall the original PCM and rewrite the immobilizer code with the PCM replacement procedure on the HDS again.