GM Full Size Vans 1987-1997 Repair Guide

Handling Electrostatic Discharge (ESD) Sensitive Parts


Many solid state electrical components utilized in these vehicles can be damaged by Electrostatic Discharge (ESD). Some of these vehicles will display a label informing you that they will be damaged by ESD and some will not have labels, but they may be damaged also. To avoid possible damage to any of these components, follow the steps outlined below in Handling Electrostatic Discharge (ESD) Sensitive Parts.

See Figure 1

  1. Body movement produces an electrostatic charge. To discharge personal static electricity, touch a ground point (metal) on the vehicle. This should be performed any time you:

    slide across the vehicle seat
    sit down or get up
    do any walking

  3. Do not touch any exposed terminals on components or connectors with your fingers or any tools.
  5. Never use jumper wires, ground a terminal on a component, use test equipment on any component or terminal unless instructed to in a diagnostic or testing procedure. When using test equipment, always connect the ground lead first.

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Fig. Fig. 1: Typical Electrostatic Discharge (ESD) label