Before changing a control module
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Before changing a control module
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Experience has shown that control module components that have been returned for repairs while under warranty are really fault-free. In these cases, replacing the control module has not remedied the fault. Thus, go through the following points before replacing the control module:
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1.
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Check the last issue of TIS2000 to see if the problem in question could be remedied by a software update for the control module (for control modules that allow reprogramming).
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2.
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Check all grounding points and the power supply to the control module.
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3.
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Use the diagnostic tool to check that all read values are reasonable (several read values can affect one function).
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4.
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Use the diagnostic tool to check that all activations work (a fault in an output circuit can affect another output circuit).
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5.
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If the fault remains, the control module must be replaced.
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6.
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The control module is sensitive to electrostatic discharge. So as not to damage the internal components, the control module must be carefully replaced as follows:
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Keep the control module in its packaging as long as possible.
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Never touch the pins of a control module with your hands or clothes.
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Ground yourself by holding onto the car's body/engine. Unplug the connector of the car control module.
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Place the replaced control module in the return package without touching its pins.
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Ground yourself by holding onto the car's body/engine. Attach the connector of the car control module.
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