Rear Climate Controls: Notes

For diagnosis and testing of the rear climate control system. Refer to: Climate Control System

The rear climate control system operation is determined by the settings on the front HVAC control panel selection or from the RHVAC control panel selection. The rear climate control components are hard wired to the HVAC control module. Air is cooled and dehumidified by the rear A/C evaporator core only if the front (main) climate control system is operating in a mode that requires A/C compressor operation.