Engine Control Module: 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, technician must ground himself and the work area to discharge static electricity.
CAUTION:
Do not remove part from packaging until ready to install. Ground any static-proof package before 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:
Before replacing ECM, carefully inspect all wiring and control components. Failure to test for short circuits may result in repeated ECM failure due to shorts. To prevent internal damage to ECM, ensure ignition is off when connecting or disconnecting ECM harness connectors or any electrical components.