Test B: Step 8

8) Check VPWR Circuit at EEC Power Relay  Turn key on, leaving engine off. With ECA connected and DVOM on 20-volt scale, measure voltage between battery negative post and VPWR circuit at EEC power relay vehicle harness connector. If reading is 10.5 volts or more, repair open or short to ground in VPWR circuit between ECA and EEC power relay. Reconnect components and repeat QUICK TEST. If reading is less than 10.5 volts, replace EEC power relay. Repeat QUICK TEST.