Not rear clear on the exact concern, so I will ask you a few questions. The drivers side zone, does it change modes, or not, and does the temperature stay hot/warm/cold? The passenger side zone always blows cold, but changes modes as commanded? The climate module(IPM) is also the control panel, and there is no real way for you to 'check it'. What I would direct you to do at this point, is perform a diagnostic system check, by pressing info up, and on/off, with the key 'on'. Hold til all of the segments illuminate, the info center will read 'ALL?'. Have a pen and paper, press on/off and the display will change to 'ALL CODES?', Press on/off again, and be prepared to read/record codes. They will display alphabetically by module. What possibly is happening, is default operations in response to faults, and if so, there should be codes. Look specifically for IPM codes, but record and post all codes if possible. With the feature you have enabled, you can read and clear codes by commands, and if you shut the key off, or miss a code or two, don't worry, you can go through it as many times as necessary.
Thursday, June 16th, 2011 AT 9:45 PM