System Revisions
WARNING: This page is about a different car, the 2003 Dodge Grand Caravan, 2003 Dodge Caravan, 2003 Chrysler Voyager, and 2003 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
Revisions to the 2003 ATC system include:
- all new version 13 (Two-Zone) and OF (Three-Zone) system software.
CAUTION:
Automatic Temperature Control (ATC) Modules with software versions 41 and 0A used in 2001 and 2002 RS/RG vehicles are NOT compatible with software versions 13 and 0F used in 2003 RS/RG vehicles. Do NOT install an ATC Module with software version 41 or 0A in a 2003 RS/RG vehicle or an ATC Module with software version 13 or 0F in a 2001 or 2002 RS/RG vehicle. Use the DRBIII® to verify which version software the ATC Module is using by selecting Body Systems, Automatic Temperature Control, and then selecting Module Display.
- a Two-Zone HVAC system on select models.
- a Cabin Heater used in conjunction with the ATC system. For additional information on this system, refer to The AC Cooldown Test, and refer to Cabin Heater under General Information and Diagnostic Procedures.
- deletion of the rear IR sensor.