Test Km: Step 8

8) Check For Voltage to A/C Fan Controller  With key on, ECA and the A/C fan controller disconnected, set DVOM on 20-volt scale. Measure voltage between ignition switch RUN circuit at the A/C fan controller vehicle harness connector and chassis ground. Measure voltage between BATT (+) circuit at the A/C fan controller vehicle harness connector and chassis ground. If voltage is greater than 10.5 volts, go to next step. If voltage is less than 10.5 volts, repair open circuit. Reconnect ECA and A/C controller. Recheck system operation.