Circuit Description
WARNING: This page is about a different variant/trim than selected.
PCM uses serial data circuit to communicate with various other devices and systems in vehicle. PCM ensures that communication remains established by monitoring the serial data circuit. If PCM detects a loss of serial data message from the HVAC controller, DTC will set.
Conditions for setting DTC:
- Ignition on.
- System voltage greater than 8.2 volts.