gmtechinfo.com Figure 7: Which is the HVAC fuse? It may be the one for the Instrument Panel Integration Module or just HVAC. In this case, for the 2002 Bonneville, the diagram shows it is Fuse D12, rated at 10-amp. Notice that with the CJ2 (dual zone with passenger side control), it's the fuse for the Instrument Panel Integration Module (labeled "IPM"). With the C67 single zone, it's the HVAC control module fuse. February 2015 6 MACS Service Reportshttp://www.gmtechinfo.com