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I'm just curious: What are you trying to accomplish after you find this elusive module?
I like the 00-05 LeSabre'*. Between myself and my son in law, we have 5 of them. We both have noticed parts are getting more scarce. So, I'm getting a small stock of spares together before they become too scarce. This is the last module that I need to locate. Once I find the modules, I make sure that I can write the VIN to the internal EEprom (for the modules which requires the VIN). Then I should be setup for when one fails.
Maybe I'll get real lucky and a member of the forum used to work on the assembly line and can tell me what I'm overlooking. All the schematics indicate it should be there. I may have to throw in the towel at some point, just not yet .
It turns out the Instrument Panel Integration Module (IPM) is for LeSabre'* with the Automatic Climate Controller. It appears the Automatic Controller is just a collection of switches and the LED alpha/numeric display and the controller + I/O is in the IPM. I would have thought it should be titled something more relevant such as Automatic Climate Remote Controller (ACRC), if for no other reason to prevent confusion. There are more I/O climate related sensors and signals such as sensing temperature at various locations in the duct work (to support the dual temperature zones). The Part number for the IPM is 25733977 and works in conjunction with the automatic climate controller part number 16236054.
I went by the bone yard yesterday and I disassembled the dash completely on a 2004 Custom (see attached Photos). I'm still unsuccessful at locating the Instrument Panel Integration Module (IPM) on the LeSabre'*. The manuals provide various descriptions, all pointing to the left side of the dash, some say left of steering column. I was optimistic that by completely disassembling the dash, I would find it somewhere. I'm going to keep hunting but so far this has been a very elusive module to locate.
photos).
From what I've read only Buicks with automatic climate control will have the instrument panel integration module or ipim I have been unable to find in mine as well! See attached image for some details
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