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Fuel Pump Relay Resistance Check

Remove relay from vehicle. Connect battery voltage to terminal "C" and connect a jumper between ground and terminal "D". See Fig 1 . Measure resistance across terminals "A" and "B". Resistance should be less than one ohm with power applied and greater than 10 k/ohms with power removed. If resistance is not within specification, replace fuel pump relay.

NOTE: For more fuel delivery system testing, see CIRCUIT TEST J in TESTS W/CODES article.
Fig 1: Testing Fuel Pump Relay
G90C14326Courtesy of FORD MOTOR CO.
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