Diagnostic Aids

Check transmission pass-through connector and PCM/TCM for poor connections.

Fig 1: DTC 83 Schematic - 1993 "C", "K" & "P" Series

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC 83 Schematic - 1993 "G" Series

Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC 83 Flow Chart - 1993

Courtesy of GENERAL MOTORS CORP.