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Test Ab: Seat Belt Indicator Inoperative

  1. Check operation of seat belts. If seat belts operate properly, go to next step. If seat belts do not operate properly, diagnose and repair as necessary.
  2. Turn ignition on. Monitor fasten seat belt indicator on IPC while buckling and unbuckling seat belt. If fasten seat belt indicator turns on and off as seat belt is buckled and unbuckled, problem may be intermittent. To diagnose intermittent, go to INTERMITTENT TROUBLE CODE DETERMINATION in BODY CONTROL MODULES - CORVETTE article. If fasten seat belt indicator does not turn on and off as seat belt is buckled and unbuckled, go to next step.
  3. Disconnect driver's seat belt switch at base of seat belt buckle. Turn ignition on. If fasten seat belt indicator is illuminated, go to step  7 . If fasten seat belt indicator is not illuminated, go to next step.
  4. Connect 3-amp fused jumper between seat belt switch connector terminals. Turn ignition on. If fasten seat belt indicator is illuminated, go to step  8 . If fasten seat belt indicator is not illuminated, go to next step.
  5. Check for open or high resistance in Black/White wire between seat belt switch connector and IPC connector terminal B2. See Figure . Repair as necessary. After repairs, go to step  10 . If circuit is okay, go to next step.
  6. Check for open or high resistance in Black wire between seat belt switch connector and ground connection located above left rear wheel, inside vehicle. Repair as necessary. After repairs, go to step  10 . If circuit is okay, go to step  9 .
  7. Check for short to ground in Black/White wire between seat belt switch connector and IPC connector terminal B2. See Figure . Repair as necessary. After repairs, go to step  10 . If circuit is okay, go to step  9 .
  8. Replace driver's seat belt buckle. After repairs, go to step  10 .
  9. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. After repairs, go to next step.
  10. Recheck system operation to verify the repair. If system operates properly, repair is complete. If system does not operate properly, go to step  3 .
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