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Home >> Chevrolet >> 1998 >> Corvette 2D Convertible, Automatic >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control Module >> Diagnostic Tests >> DTC B2735: Pass-Key(R) Programming Mode Active >> Diagnostic Aids
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Diagnostic Aids

  1. If there is a short or open in circuit No. 1073 (White/Black wire) or No. 1074 (Purple/White wire) between BCM and ignition switch, BCM will not be able to accept a valid PASS-Key(R) code when program mode is activated. Vehicle will exhibit a no-crank condition.
  2. If DTC B2722 or B2723 exists, diagnose this DTC first. These DTCs will affect BCM's ability to properly read a PASS-Key(R) resistance value.
  3. If key resistor pellet is incorrect, there will be no BCM outputs to theft deterrent relay or PCM for about 3 minutes. If a key (even a proper PASS-Key(R)) is inserted or ignition is turned on again, 3 minutes time-out period will reset. If battery is disconnected, time-out period will be reset when battery is reconnected.
  4. Clean key resistor contacts thoroughly. Check for poor connections at BCM and ignition lock cylinder. A poor connection may cause an open, an incorrect PASS-Key(R) resistance or an intermittent malfunction.
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