Engine Controls - Pin Voltage Charts: Introduction

Pin voltage charts are supplied to reduce diagnostic time. Checking pin voltages at the Electronic Control Assembly (ECA) determines whether it is receiving and transmitting proper voltage signals. Charts may also help determine if ECA wiring harness is shorted or opened.

Fig 1: Identifying ECA Connector Terminals (Festiva)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying ECA Connector Terminals (Capri)

Courtesy of FORD MOTOR CO.

NOTE: Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.

NOTE: For additional pin voltage information, see appropriate trouble code information in G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.

Fig 3: Checking ECA Pin Voltages (Festiva)

Courtesy of FORD MOTOR CO.

Fig 4: Checking ECA Pin Voltages (Capri)

Courtesy of FORD MOTOR CO.