FixVault

Input/Output Signal Chart

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
Sensor/Unit Input Signal to ECM ECM function Actuator
Refrigerant pressure sensor Refrigerant pressure Air conditioner cut control HPCM

A/C auto amp.

Electric compressor
A/C auto amp.→HPCM A/C ON signal(1)
(1) This signal is sent to the ECM via the CAN communication line.