Diagnostic Aids
WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
DTC is an indication that restraints identification stored in IPC and SDM DO NOT match or that VIN stored in IPC and SDM DO NOT match. If IPC and/or Powertrain Control Module (PCM) were replaced, reprogramming is necessary.