A/C Compressor Clutch Relay

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The A/C compressor clutch relay supplies voltage to the A/C compressor clutch and is located in the battery junction box (BJB). The powertrain control module (PCM) can interrupt the A/C compressor operation through the A/C compressor clutch relay under the following conditions:

During engine start-up
Wide open throttle (WOT)
Low engine idle conditions
Excessively high engine temperatures