A/C Pressure Switch -F129-

A/C Pressure Switch -F129-







NOTE: Depending on engine type, refrigerant systems have either an A/C pressure switch -F129- or high pressure sensor -G65- installed. Refer to appropriate wiring diagram.


Switch -F129- has three functions:
- Switches the A/C clutch -N25- off when excessive refrigerant circuit pressure is present (e.g.: insufficient air flow over condensor or when overcharged).
- Switches the A/C clutch -N25- off when insufficient refrigerant circuit pressure is present (e.g.: when refrigerant has leaked out)
- Switches on the second speed coolant fan -V7- when refrigerant circuit pressure increases.