How to End a Troubleshooting Session (required after any troubleshooting) Reset the ECM/PCM with the HDS. Do the ECM/PCM idle learn procedure. Turn the ignition switch OFF. Disconnect the HDS from the DLC. NOTE: The ECM/PCM is part of the immobilizer system. If you replace the ECM/PCM, it will have a different immobilizer code. In order for the engine to start, you must rewrite the immobililzer code with the HDS. |