Compressor Control Relay
WARNING: This page is about a different car, the 1996 Chevrolet Caprice. However, it is still accessible from the selected car via links, so may be relevant.
Compressor control relay is located on multi-use relay bracket on right front wheelwell, near accumulator. Powertrain Control Module (PCM) energizes compressor control relay for compressor operation. If PCM receives a signal indicating Wide Open Throttle (WOT) or engine overheating, it will de-energize compressor control relay, stopping compressor operation. During hot engine restart, compressor engagement will not be allowed for 3 seconds to allow engine idle to stabilize.