Federal

Air Conditioner Control Circuit:

Turn the ignition switch ON, locate terminal #6 of the ECu connector C50-1, and test for the presence of power with the A/C switch in the "on" position. Battery voltage should be available with the switch in the "on" position, and 0 volts should be present in the "off" position.

NOTE: To test pins do not remove the connector from the ECU, instead insert a straight pin or needle in the back side of the connector.