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HOMESERVICE MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 6 (ANTI-THEFT SYSTEM)DIAGNOSTIC TESTSDTC B2735: PASS-KEY(R) PROGRAMMING MODE ACTIVEDIAGNOSTIC PROCEDURE
2001 Chevrolet Cavalier LS, 2.4 T

Diagnostic Procedure

2001 Chevrolet Cavalier LS, 2.4 TSECTION Diagnostic Procedure
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Program PASS-Key(R) system. See BCM/PASS-KEY(R)  under PROGRAMMING. After programming, go to step  3 .
  2. Using scan tool, check for DTCs B2722 or B2723. If either of these DTCs exist, perform appropriate diagnostic procedure. If neither of these DTCs exist, go to step  4 .
  3. Using scan tool, clear DTCs. Check for DTCs. If DTC B2735 is current, go to step  2 . If DTC B2735 is not current, system is operating properly.
  4. Replace BCM. See BODY CONTROL MODULE (BCM)  under REMOVAL & INSTALLATION. Program BCM. See BCM/PASS-KEY(R)  under PROGRAMMING. After repairs, go to next step.
  5. Turn ignition off. Reinstall all components and connectors. Turn ignition on. Clear DTCs and recheck system operation.
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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.