1997 Chevrolet Corvette AutomaticFACTORY OEM SERVICE PROCEDURE

DTC B2735: Pass-Key(R) Programming Mode Active: Testing

  1. If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, go to BCM DIAGNOSTIC SYSTEM CHECK  .
  2. Program PASS-Key(R) system. See BCM PROGRAMMING/RPO CONFIGURATION  . Go to step 4).
  3. Using scan tool, check for DTCs B2722 or B2723. If either of these DTCs exist, go to appropriate DTC test. If neither of these DTCs exist, go to step 5).
  4. Using scan tool, clear DTCs. Check for DTCs. If DTC B2735 is current, go to step 3). If DTC B2735 is not current, system is operating properly.
  5. Replace BCM. See REMOVAL & INSTALLATION  . Reprogram BCM. See BCM PROGRAMMING/RPO CONFIGURATION  . Go to next step.
  6. Turn ignition off. Reinstall all components and connectors. Turn ignition on. Clear DTCs. Perform BCM DIAGNOSTIC SYSTEM CHECK  .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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