KM15 - No A/C Cutout at WOT: Check VPWR to WAC Relay
- Disconnect harness from Wide Open Throttle A/C Cut-Off (WAC) relay.- Key "ON" engine "OFF".
- Measure voltage between VPWR circuit at the WAC relay vehicle harness connector and chassis ground.
- Is voltage greater than 10.5 volts?
Yes -- Go to KM16.
No -- Service open in VPWR circuit between Electronic Engine Controls (EEC) power relay and WAC relay. Reconnect all components. Re-evaluate symptom.