LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2000 >> Cavalier Base, 2D Coupe, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System >> Diagnostic Tests >> DTC B3031: Security System Controller In Learn Mode >> Diagnostic Procedure

Diagnostic Procedure

  1. Connect scan tool. Momentarily turn ignition switch to START position, and then release to RUN position. If scan tool displays DTC B3031 as a current DTC, go to next step. If scan tool does not display DTC B3031 as a current DTC, see DIAGNOSTIC AIDS  .
  2. If scan tool displays DTC B2947, B2948, B2957 or B2958, perform appropriate diagnostic procedure. If none of these DTCs are displayed, go to next step.
  3. Check Passlock(tm) sensor connector for poor connections. Repair as necessary. If connections are okay, replace Passlock(tm) sensor. See appropriate STEERING COLUMN SWITCHES article. Program Passlock(tm) sensor. See PROGRAMMING  . After repairs, go to next step.
  4. Using scan tool, clear DTC's. Turn ignition switch to OFF position. Turn ignition switch to RUN position and check for DTCs. If DTC B3031 resets, go to next step. If DTC B3031 does not reset, system is okay.
  5. Check BCM harness and connections. Repair as necessary. If harness and connections are okay, replace BCM. See BODY CONTROL MODULE  under REMOVAL & INSTALLATION.
scientia non olet · About LEMON Manuals