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Home >> Ford >> 1994 >> Probe Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls - Tests W/Codes - EEC 2.5L) >> Self-Diagnostic System >> Reading Self-Diagnostic Codes >> Using Analog VOM
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Using Analog VOM

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Watch voltmeter and count needle sweeps (between 0-12 volts) to determine code. Pay careful attention to length of pauses in order to read codes correctly. A 2-second pause occurs between digits in a code. A 4-second pause occurs between each code. See Figure.