Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The PCM stores the DTC information into memory when the diagnostic runs and fails.
The PCM will store conditions which were present when the DTC set as Failure Records data only.
The PCM disables most outputs.
The transmission defaults to a predetermined gear.
The torque converter clutch (TCC) operation is inhibited.
The instrument panel cluster (IPC) displays a message.
The malfunction indicator lamp (MIL) will not illuminate.