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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test TC - E4OD Transmission >> Test TC: Step 13
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Test TC: Step 13

13) Checking Key Power Through OCIL Circuit  With KOEO, ensure breakout box is installed and ECA is disconnected. Set DVOM on 20-volt scale. Measure voltage between test pin No. 32 and test pins No. 40 and 60 at the breakout box. If voltage is greater than 10.5 volts, remove the breakout box, replace ECA and rerun QUICK TEST. If voltage is less than 10.5 volts, go to next step.