Operation CHARM: Car repair manuals for everyone.

A/C Pressure Sensor/Switch - Cooling Fan: Testing and Inspection

Run engine and operate A/C.
Connect A/C manifold gauges.
Check Triple-Pressure Switch under the following conditions:

Low Pressure Side
ON 157-226 kPa (23-33 psi)
OFF 152-201 kPa (22.0-29.2 psi)

Medium Presure Side [1]
ON 1,422-1,618kPa (206-235 psi)
OFF 1,128-1,422kPa (164-206 psi)

High Pressure Side
ON 1,667-2,059kPa (242-299 psi)
OFF 2,452-2,844kPa (356-412 psi)

[1] -- For radiator fan motor operation