Copying PASS-Key II Ignition Key

IMPORTANT
^ when servicing the PASS-Key(R) II system, obtain all vehicle ignition keys if possible and verify the key code values with tool J 35628-A.

To copy a PASS-Key(R) II ignition key, it is necessary to first determine which key code (resistance value) is needed. To determine the key code of the master (current) ignition key use the J 35628-A, PASS-Key(R) II (VATS) Interrogator and follow the procedure below.
1. Turn the J 35628-A on, make sure the tool wiring connectors are disconnected.
2. Insert the key into the tool lock cylinder.
3. The key code reader displays the measured key code of the master ignition key.
4. Obtain a key blank matching this key code and cut it to match the original key.