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HOMESERVICE MANUALSCHEVROLET1995CAVALIER LS, 2D CONVERTIBLE, 2.2 4, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSANTI-THEFT SYSTEMTESTINGDIAGNOSTIC TROUBLE CODES (DTCS)DTCS 15, 24 & 28, PASSLOCK(R) CLUSTER FAIL ENABLED
1995 Chevrolet Cavalier LS, 2D Convertible, 2.2 4, Standard

DTCs 15, 24 & 28, Passlock(R) Cluster Fail Enabled

1995 Chevrolet Cavalier LS, 2D Convertible, 2.2 4, StandardSECTION DTCs 15, 24 & 28, Passlock(R) Cluster Fail Enabled
  1. Using scan tool, retrieve DTCs. Clear DTCs. If DTC 11 or 25 is not set, go to next step. If DTC 11 or 25 is set, IPC has recently detected an MRD data short during normal vehicle operation. See DTCs 11 & 25, PASSLOCK(R) LOCK CYLINDER DATA SHORTED TO GROUND DURING IGNITION CYCLE.
  2. If DTC 12, 24 or 27 is not set, go to next step. If DTC 12, 24 or 27 is set, IPC has detected a bad R-Code during normal vehicle operation. See DTCs 12, 24 & 27, PASSLOCK(R) BAD R-CODE DURING IGNITION CYCLE.
  3. If DTC 28 is not set, replace IPC. See appropriate article. If DTC 28 is set, check for a short to ground in Black wire between ignition switch and IPC. If Black wire is okay, replace IPC. See article.
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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.