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.
In addition to GMLAN parameters, the HPCM directly monitors the following signal circuits:
- Transmission shift selector internal mode switch (IMS) Direction and Park/Neutral switch signals
- Engine crankshaft position (CKP) sensor signal
- ATFP diagnostic circuit
- High voltage interlock circuit (HVIC)