General Specifications

Item

Specification

A/C Compressor

Type

EVDC

Rotation

Clockwise

Evaporator Temperature Sensor

A/C clutch cut-out and cut-in temperature

⁽¹⁾

Compressor control and the evaporator temperature are a function of many parameters, not a straight on off to avoid freezing the evaporator. The PCM (powertrain control module) monitors multiple temperature sensors correlation (AAT, CHT, ECT IAT, MAF...) as applicable. The PCM runs this logic after an engine off and a calibrated soak period, typically 6 to 8 hours. This soak period allows the Ambient Air Temperature (AAT) sensor and the other temperature sensors to stabilize and not differ by greater than a calibrated value, typically 18 °C (32.4 °F). If a sensor input is found to be reporting a temperature imbalance the PCM does not allow the A/C (airconditioning) clutch to engage. For more information on PCM sensors, Refer to Engine Controls - Introduction (Except Diesel & Hybrid) .