Index Chrysler Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager - service repair manual 1992 year
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pansion valve, and the expansion valve is silver in color LPCO SWITCH TEST The work area temperature must not be below 10°C (50°F) to test the compressor clutch circuit. (1) With gear selector in park or neutral and park brake set, start engine and allow to idle. (2) Raise hood and disconnect LPCO switch connec- tor boot. (3) Using a suitable jumper wire, jump across the terminals inside wire connector boot. (4) If the compressor clutch does not engage, the cycling clutch switch, wiring, relay, or fuse can be (5) If clutch engages, connect manifold gauge set. Read low pressure gauge. At pressure above 97 kPa (14 (6) Install connector boot on switch and repeat step number 3. If the clutch does not engage, replace the ELECTRONIC CYCLING CLUTCH SWITCH The Electronic Cycling Clutch Switch (ECCS) is located on the A/C refrigerant line at the expansion The ECCS uses a thermistor probe in a capillary tube. This is inserted into a capillary tube well on the to the probe. The ECCS is a sealed unit and cannot be TEST PROCEDURE With the ambient temperature in the test area around 21°C (70°F), supply 12 ( 61) volts to pin 2 and ground pin 4 (Fig. 4). Test for continuity from pin 1 to FIXED DISPLACEMENT COMPRESSOR REFRIGER- Refer to the Refrigerant System Diagnosis chart in this section. SILVER EXPANSION VALVE TESTS Expansion valve tests should be performed af- ter compressor tests. Review Safety Precautions and Warnings in the General Information section of this Group. The work (1) Connect a charging station or manifold gauge set to the refrigerant system service ports. Verify the Fig. 2 Low Pressure Cut-Off Switch Fig. 3 Electronic Cycling Clutch Switch Fig. 4 ECCS Connector . HEATING AND AIR CONDITIONING 24 - 15 |