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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 FD - Brake On/Off (Boo) Switch >> Test FD: Step 15
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Test FD: Step 15

15) Check For Short to Power in ECA  Turn key off. Reconnect BOO circuit harness connector. Disconnect ECA. With KOEO, check to see if brakelights are on. If so, repair short to power between ECA and harness connector. Repeat QUICK TEST. If not, replace ECA and repeat QUICK TEST.