Test D: A/C Control Assembly Output Test

Test D A/C Control Assembly Output Test:

1. Check the voltage to ground using a test lamp at the terminals of the Heater-A/C Control Assembly illustrated in the image.

^ If all tests are normal but the Compressor Clutch does not engage, check for an open in the LT GRN wire (66) to terminal A of the Pressure Cycling Switch.
^ If test lamp does not light at terminal E, check for an open in the BRN wire (50).
^ If test lamp does not light at terminal C, replace the Heater-A/C Control Assembly.