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Determining BCM Programmed Key Code

WARNING: This page is about a different car, the 2002 Pontiac Firebird, 2002 Chevrolet Camaro, 2001 Pontiac Firebird, and 2001 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

To determine unknown BCM key code, use PASS-Key(R) II VATS Interrogator (J 35628-A) and following procedure.

  1. Connect PASS-Key(R) II VATS Interrogator wiring to PASS-Key(R) II dash connector at base of steering column. DO NOT connect to steering column wiring.
  2. Turn on PASS-Key(R) II VATS Interrogator and move key code switch to "1" position and attempt to start engine. If engine starts, key code is "1". If engine does not start, turn ignition switch to OFF position and wait 3 minutes.
  3. Move key code switch to next number and attempt to start engine. If engine does not start, continue trying different key codes until proper key code is found.