Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
If they apply salt on roads your way and you bring in moisture from outside even inside connectors can corrode. PCM doesn't talk to Cluster directly it does so through the BCM same as it doesn't communicate with the transmission directly it also does this through the BCM. The slow GMlan communication comes in on the BCM is amplified, clipped for nice square waves, reconditioned and sent out to all CPUs including Theft deterrent, instrument panel, radio, RCDLR, TCM, EBCM and all others I forget.
Never drive faster than your guardian angel can fly