Global Parts 1711530 A/C Clutch Cycle Switch

Global Parts A/C Clutch Cycle Switch

Global Parts 1711530 is an A/C clutch cycle switch used in HVAC systems to monitor refrigerant pressure and relay feedback to the engine management system. On modern vehicles, the ECM uses this signal to control A/C operation; on earlier applications, the switch can directly cycle the compressor off to help prevent compressor damage.

• Electrical A/C clutch cycle switch for HVAC pressure control
• Provides feedback to the engine management system
• Used to cycle the compressor off on earlier vehicle designs
• Accumulator-mounted application on listed Ford, Lincoln, and Mercury vehicles
• Cross-references Four Seasons 20957 for the same application

Detailed Application Information

This Global Parts 1711530 switch is a direct-fit HVAC electrical component for select Ford Crown Victoria, Ford GT, Mercury Grand Marquis, and Lincoln Town Car models. It is specified as accumulator mounted, with the 2003 and 2004 Lincoln Town Car listings noting a yellow switch design and a 2004 cutoff before 03/22/2004. Use this part when replacing a failed A/C clutch cycle switch on the accumulator in 2003-2005 Ford Crown Victoria, 2005 Ford GT, 2003-2005 Mercury Grand Marquis, and 2003-2004 Lincoln Town Car applications.

What It Helps Correct

• Compressor cycling that is too frequent or too infrequent
• A/C system feedback faults reported to the ECM
• Compressor shutdown caused by a failed pressure switch signal
• Intermittent cooling performance on accumulator-mounted systems
• HVAC operation issues on Ford Crown Victoria, Mercury Grand Marquis, and Lincoln Town Car models

Installation Notes

Verify the accumulator-mounted switch style and vehicle build date before ordering, especially for 2004 Lincoln Town Car applications built before 03/22/2004. Match the original connector and switch configuration to the vehicle’s HVAC system, and confirm the part number 1711530 against the removed component when servicing the A/C system.

Quality Assurance

Global Parts supplies this A/C clutch cycle switch as an OE-style replacement for the listed applications. The manufacturer description identifies its role in ECM feedback and compressor protection, supporting proper HVAC control on the specified vehicles.