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Pass-Key II(R)

WARNING: This page is about a different car, the 1994 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check ignition key for cracked, dirty, or coated resistor pellet. Ensure ignition key is free from excess plastic around resistor pellet contacts. Check ignition key using Interrogator (J 35628). If key code window shows "E", replace key. Check key pellet sensing contacts in ignition lock cylinder by looking into key opening. If contacts are damaged or not Silver, replace lock cylinder.
  2. Check instrument panel fuses No. 24 and 33. If PASS-Key II(R) system is intermittent, ensure connector to Central Control Module (CCM) is tight and terminals are clean. Also check CCM grounds. If theft deterrent relay must be replaced, check Yellow wire to starter solenoid for a short to ground.
  3. To check contacts to key and wires in steering column, disconnect connector near base of steering column. Measure resistance back to key at this connector while turning and adjusting steering wheel. If there is a change or intermittent reading, replace lock cylinder and attached steering column wires. See Fig 1.
Fig 1: Removing Steering Column Lock & Cylinder Assembly
G94C31890Courtesy of GENERAL MOTORS CORP.