Test J: Step 31

31) Check For Voltage at POWER-to-PUMP Circuit to Verify Fuel Pump Relay Operation  With key off, set DVOM on 20-volt scale. Connect DVOM between POWER-to-PUMP circuit at fuel pump relay and battery negative post. Check voltage while turning key to ON position (for one second) and OFF position (10 seconds). Repeat cycle at least 5 times. If voltage is greater than 10.5 volts for approximately one second after key is turned to RUN position, go to next step (5.0L except Mustang, 4.9 PFI, 5.0L PFI, 5.8L PFI and 7.5L PFI trucks) or replace ECA (all other models) and rerun QUICK TEST. If voltage is not to specification, inspect relay harness connector. If okay, replace fuel pump relay. Rerun QUICK TEST.