LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2000 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Computerized Engine Controls >> Pcm Power & Ground Check >> Ground Circuits
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Ground Circuits

  1. Using DVOM, check for continuity to ground on PCM ground terminals. See POWERTRAIN CONTROL MODULE CONNECTOR TERMINAL IDENTIFICATION . See Figure or Figure . If continuity is not present, repair open in ground circuit. If continuity is present, go to next step.
  2. Connect negative lead to a known-good ground. Backprobe positive lead to each PCM ground terminal. With engine running, DVOM should indicate less than one volt. If DVOM indicates more than one volt, check for open, short to voltage, corrosion or loose connection in ground circuit. If DVOM indicates less than one volt, see POWER CIRCUITS .
scientia non olet · About LEMON Manuals