System Revisions
The 2004 WJ/WG HVAC systems remain mostly carryover from 2002. However, the 2003 and above model year AZC Module is NOT interchangeable with other model year AZC Modules due to revised control software.
The 2004 WJ/WG HVAC systems remain mostly carryover from 2002. However, the 2003 and above model year AZC Module is NOT interchangeable with other model year AZC Modules due to revised control software.