Circuit Inputs
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
Inputs supported by the APM include the high voltage and 12 volt circuits. The APM also monitors various internal components for current, voltage and temperature. The APM is also connected to the high speed hybrid GMLAN communication circuit. An individual 12 volt discrete circuit powers ON the APM. The APM will not begin conversion of voltage however, until the appropriate GMLAN enable signal is communicated to it by the HPCM.