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International Automotive Technicians Network
Re: 99 Grand Cherokee ATC woes
Posted to HVAC Forum on 6/10/2006

Hi Jim,

If you have AZC, you should perform the recalibration required after the Mid-Case repairs; the system may be logic calibrated for the older settings.

Additionally there is a TSB for similar symptoms with AZC, which requires replacement of the Autom... Login to read more.