Econ - Dual Zone Automatic System

Pressing the 'ECON/OFF' momentary switch in the control panel will switch off the A/C system. When selected, the ATC module will transmit a message over the high speed CAN bus to the ECM requesting the A/C compressor is disabled. The ECM disables the compressor by de-energizing the A/C compressor control relay located in the BJB. The 'ECON' tell-tale LED in the switch will illuminate to alert the vehicle occupants that the system is in 'ECON' mode.

When 'ECON' mode is selected, temperature control is still available but no cooling of intake air will take place. The minimum output air temperature from the system will be ambient air temperature plus any heat pick up in the air intake path.

A second press of the 'ECON/OFF' switch will extinguish the 'ECON' LED and illuminate the 'OFF' LED. When in 'OFF' mode the ATC module sets the blower motor speed to 0. Air distribution into the cabin will remain as previously selected. All LED's on the control panel will be extinguished, although night time illumination will remain active.

NOTE: When in 'OFF' mode, the heated seat, heated windshield and heated rear window functions will still be available.

A third press of the 'ECON/OFF' switch returns the system to normal (A/C) operation and extinguishes the 'OFF' LED. The system can be returned to automatic operation at any time by pressing the 'AUTO' switch mounted in the central (blower motor) rotary controller.

Stop/Start Vehicles - From 2010 MY

From 2010 MY, the 'ECON' switch will be labeled 'A/C' to prevent confusion with the 'Eco' switch which operates the 'Stop/Start' and 'Gear Change Indicator' systems. For additional information, refer to the appropriate Starting System information.