Test Km: Step 3

3) Check For Power on A/C Demand Circuit  With KOEO and WAC relay or A/C fan controller disconnected, turn on A/C switch. Set DVOM to 20-volt scale. Measure voltage between A/C demand input terminal pin at WAC relay or A/C fan controller vehicle harness connector and chassis ground. If voltage is greater than 10.5 volts, go to step 6). If voltage is less than 10.5 volts, verify operation of A/C clutch cyclic pressure switch and A/C demand switch. If components are okay, repair open circuit and reconnect all components. Recheck system.