Test Km: Step 18

18) Check WAC System For Cycling  With vehicle in Output State Check, reconnect WAC relay and set DVOM on 20-volt scale. Connect positive test lead to VPWR circuit and negative test lead to WAC circuit at WAC relay vehicle harness connector. Check DVOM while depressing and releasing throttle several times, to cycle output on and off. If voltage cycles from high to low, replace WAC relay, remove jumper and retest system. If voltage does not cycle, remove test leads and go to next step.