Chrysler Town & Country 2008-2009
Dodge Grand Caravan 2008-2009
This procedure requires the technician to know what the actual relative humidity is for the time and day of the test. This information can be obtained from multiple sources, such as the internet or local news media.
Make sure the following conditions are met in the area where the test is to be performed:
NOTEWhen connecting service equipment couplings to the line fittings, verify that the valves of the couplings are fully closed prior to installation. This will reduce the amount of effort required to make the connection.
Maximum ambient temperature: 10° F (43.3° C)
- Connect a manifold gauge set or an A/C recycling/charging station.
Operate the heating-A/C system under the following conditions:
Engine at normal operating temperature
- Using a scan tool, manually close the high speed cooling fan relay. If this step is not performed, the test results will not be accurate.
Insert a thermometer in the driver side center panel air outlet and operate the A/C system until the thermometer temperature stabilizes (or a minimum of 5 minutes).
NOTEThe compressor clutch may cycle while performing this test, depending upon the ambient temperature and humidity. If the clutch cycles, use the readings obtained before the clutch disengaged.
With the A/C compressor clutch engaged, compare the observed panel outlet air temperature along with the ambient temperature of the work area and the relative humidity to the Maximum Panel Outlet Temperature chart.