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Home >> Ford >> 1990 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test J - Fuel Pump Circuit >> Test J: Step 8
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Test J: Step 8

8) Check FUEL PUMP Circuit Continuity  Turn key off and wait 10 seconds. Disconnect ECA 60-pin connector. Inspect for corroded or damaged connector pins and repair as necessary. Install breakout box, leaving ECA disconnected. With DVOM on 200-ohm scale, measure resistance between FUEL PUMP circuit at pump relay and test pin No. 22 at breakout box. If reading is 5 ohms or more, repair open in FUEL PUMP circuit. Repeat QUICK TEST. If reading is less than 5 ohms, go to next step.