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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 352 (HVAC Systems - Automatic) >> Description & Operation >> Air Temperature Description & Operation >> HVAC Control Components >> Instrument Panel Integration Module

Instrument Panel Integration Module

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

A function of the IPM operation is to process HVAC system inputs and outputs. Also, the IPM acts as the HVAC control module's Class 2 interface. The battery positive voltage circuit provides power that the IPM uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, then all HVAC DTCs and settings will be erased from KAM. The ignition 3 voltage circuit provides a device on signal. The IPM supports the following features:

FEATURES AVAILABILITY

Feature Availability
Afterblow Optional
Purge Yes
Personalization Optional
Actuator Calibration Yes