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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Computerized Engine Controls >> Electronic Control Assembly (ECA) >> Power Circuits
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Power Circuits

Using a voltmeter, check for battery voltage between ECU terminal No. 1 and ground. If battery voltage is not present, check Blue fusible link. If fusible link is okay, check for an open in wire to terminal No. 1 on ECA.

ECA LOCATION

Application Location
Aerostar Left Dash Panel
Bronco & "F" Series Behind Left Kick Panel
Bronco II & Ranger Behind Right Kick Panel
"E" Series Right of Dash Panel, Under Blower Motor
Fig 1: Identifying ECA 60-Pin Connector Terminals
G90I09354Courtesy of FORD MOTOR CO.