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Home >> Ford >> 1990 >> Bronco 4.9 Y, Standard, M5OD-R2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Engine Controls - Tests W/Codes >> Test N: Step 8
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Test N: Step 8

8) Check ECA For Short to Ground  Turn key off and wait 10 seconds. Disconnect "E" core ignition coil on TFI vehicles and DIS module connector (pins No. 7-12) on DIS equipped vehicles. Disconnect EDIS module on EDIS vehicles. Install breakout box and connect ECA. With DVOM on 200-k/ohm scale, measure resistance between Test Pin No. 4 and test pins No. 40, 46, and 60. If any reading is less than 10 k/ohms, replace ECA, reconnect all components and rerun QUICK TEST. If all readings are 10 k/ohms or more, reconnect components and go to next step.