Power Circuits
WARNING: This page is about a different car, the 1994 Mercury Topaz and 1994 Ford Tempo. However, it is still accessible from the selected car via links, so may be relevant.
Using a voltmeter, check for battery voltage between PCM terminal No. 1 (KAPWR) and ground. See Fig 1 . Check for battery voltage at terminals No. 37 and 57 (VPWR). If battery voltage is not present, EEC power relay is not supplying power. See CIRCUIT TEST B in TESTS W/CODES - EEC-IV (2.3L) article in the ENGINE PERFORMANCE section.