How to End a Troubleshooting Session (required after any troubleshooting)

Reset the ECM/PCM with the HDS.
Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
Disconnect the HDS from the DLC.

NOTE: The ECM/PCM is part of the immobilizer system. If you replace the ECM/PCM, for the engine to start, you must use the HDS to instruct the new ECM/PCM and the immobilizer-keyless control unit (without keyless access) or the keyless access system (with keyless access) to recognize each other's unique serial code.