A/C Relay Disable Criteria

The ECM will disable the A/C relay when any of the following conditions occur:
^ A/C request from BCM over the controller area network (CAN) link is not received.
^ EVAP temperature from BCM based on the EVAP temperature sensor below -40°C (39°F).
^ A/C pressure sensor input falls outside of 180-2999 KpA range.
^ Engine coolant temperature (ECT) falls outside of -48°-100°C (-54.4°- 212°F) range.
The ECM will re-enable the relay when the ECT is within 46°- 104°C (-50°- 219.2°F) range.