Section 1 (HVAC Systems - Manual): Self-Diagnostics: Notes
WARNING: This page is about a different car, the 1999 Dodge Intrepid and 1999 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
There may be DTCs stored in Powertrain Control Module (PCM) that
are not related to A/C-heater system DTCs which are stored in Body Control
Module (BCM). There are some PCM DTCs that identify problems affecting A/C-heater
system operation.