P1681

DESCRIPTION
This diagnostic applies to internal microprocessor integrity conditions within the powertrain control module (PCM). This diagnostic also addresses if the PCM is not programmed. The following DTCs are diagnosed in this DTC table:
^ DTC P0601
^ DTC P0602
^ DTC P0604
^ DTC P0606
^ DTC P1683

DIAGNOSTIC AIDS
For complete details on programming the PCM, refer to Powertrain Control Module (PCM) Programming (Offboard) or Powertrain Control Module (PCM) Programming (Onboard).

TEST DESCRIPTION

Steps 1-7:

The number below refers to the step number on the diagnostic table.
2. A DTC P0602 indicates the PCM is not programmed.