Test D: A/C Control Assembly Output Test

1. Check the voltage to ground using a test lamp at the following terminals of the Heater and A/C Control Assembly.

Test D Heater And A/C Control Output Test:

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