KM17 - Check For WAC Cycling

- Still in Output State test mode.

- Wide Open Throttle A/C Cut-Off (WAC) relay disconnected.

- Digital Volt/Ohm Meter (DVOM) on 20 volt scale.

- Connect DVOM positive test lead to the VPWR circuit and the negative test lead to the WAC circuit at the WAC relay vehicle harness connector.

- While observing DVOM, depress and release throttle several times (to cycle output on and off).

- Does voltage cycle high and low (about one volt change)?

Yes -- Replace WAC relay. Remove jumper. Re-evaluate symptom.

No -- Remove jumper. Reconnect speed control servo. Go to KM18. KM18 - Check WAC Circuit Continuity