P0603

DESCRIPTION
This diagnostic applies to the internal microprocessor integrity conditions within the control module. This diagnostic also addresses whether the control module is 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 (Onboard) or Powertrain Control Module (PCM) Programming (Offboard).

TEST DESCRIPTION

Steps 1-7:

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