FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Electronic Brake Control Module: Service Precautions






All electronic control modules are more or less sensitive to electrostatic discharge (ESD = Electro Static Discharge) and can, if treated incorrectly, be damaged so seriously that they are put out of operation. An operational disorder does not necessarily become immediately visible, but a damaged electronic control module can degenerate with time and the problem become evident at a later stage. Therefore it is important that the following rules are adhered to in all contexts when the electronic control module must for any reason be removed or changed.

- Avoid unfastening or removing the electronic control module unless absolutely necessary.
- Never touch the connector pins and never place the electronic control module in a position that the connector pins come into contact with foreign objects.
- Before a new electronic control module is unpacked, ground the wrapping against the chassis of the car. Unpack the electronic control module in as short a time possible before installation.
- When you work with the electronic control module it is important that you yourself have the same ground potential as your surroundings. This is especially important if you have traveled in a car, changed location or moved around the car, and also especially important under climatic conditions with very dry air (i.e. in winter time in cold climates).
- Avoid clothing manufactured of synthetic materials.
- Avoid foot wear with insulated rubber soles.
- Always handle an electronic control module with suspected faults with the same caution as a fault free electronic control module. This considerably increases the possibility of localizing the source of the problem.