Electronic Control Module (ECM): Notes
CAUTION:
Electronic components used in control systems are designed to carry very low voltages, as little as a 30-volt charge created by static electricity can cause a total or degrading failure in ECM or other electronic components containing integrated circuits. Before servicing ECM, ground yourself and ground the work area to discharge stored electricity.
STATIC CHARGE
| Movement | Relative Humidity 10-20% | Relative Humidity 65-90% |
|---|---|---|
| Handling Clear Plastic Bag | 20,000 | 1200 |
| Handling Vinyl Envelope | 7000 | 600 |
| Sliding On Velour Seat | 15,000 | 400 |
| Walking On Carpet | 35,000 | 1500 |
| Walking On Tile/Vinyl | 12,000 | 50 |
CAUTION:
DO NOT
remove part from packaging until ready to install. Ground any static-proof package PRIOR to opening. DO NOT
touch electrical terminals of components unless properly grounded. DO NOT
lay electrical components on car seat, carpeting or dashboard. Use electrostatic protection mat and ground strap whenever possible.
NOTE:
Prior to replacement of ECM, a careful inspection of all wiring and control components should be made. Failure to test for shorts, grounds and reasons for Quad-Driver failure may cause repeat failure of ECM. To prevent internal damage to ECM, ignition switch must be in OFF position when disconnecting or reconnecting ECM connectors or 12-volt components.