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Ground Circuits

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Isuzu Oasis, 1998 Isuzu Oasis, 1998 Honda Prelude, 1998 Honda Odyssey, and 1998 Honda Civic. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure resistance to ground at appropriate PCM ground terminals. See POWER & GROUND CIRCUIT TERMINAL IDENTIFICATION  . See Figure . Resistance should be zero ohms for each circuit. If resistance is not zero ohms, repair open to ground.
  2. To check voltage drop on ground circuit, connect negative lead of DVOM to a good ground. Connect positive lead to each ground terminal. With engine running, voltmeter should indicate less than 0.1 volt. If voltage is more than 0.1 volt, check for open, corrosion, or loose connection on ground lead. See WIRING DIAGRAMS article.
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