LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2001 >> Tracker 2D Utility, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Engine Component Tests >> 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 at PCM ground terminals. See Figure. Resistance should be zero ohms. If resistance is not zero ohms, repair open in ground circuit. If resistance is as specified, go to next step.
  2. Connect negative lead to a known-good ground. Backprobe positive lead to each PCM ground terminal. With vehicle 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