1989-1991 Chevrolet V1500 Suburban 5.7L V8. 1989-1991 Chevrolet V1500 Suburban 6.2L V8. Notes: A/C Clutch Cycle Switch -- A/C Clutch Cycle Switch; Accumulator Mounted; Low Pressure. In earlier vehicles, they are used to directly turn the compressor off to avoid compressor failure.
