Before changing a control module
|
|
Before changing a control module
|
It is our experience that the majority of control modules returned to us for repair or replacement under warranty are in perfect working order. In these cases, fitting a new control module has obviously not cured the fault. Therefore, go through all the following points carefully before changing the control module:
|
1.
|
Check the latest edition of TIS2000 to see whether the problem can be solved with a control module software update (for control modules that can be reprogrammed).
|
|
2.
|
Check all grounding points and the power supply to the control module.
|
|
3.
|
Check with a diagnostic tool that all the readings are plausible (several readings can affect one function).
|
|
4.
|
Check with the diagnostics tool that all activations function normally. (Malfunction in one output circuit can affect another output circuit).
|
|
5.
|
If the malfunction remains, the control module must be replaced.
|
|
6.
|
Control modules are sensitive to electrostatic discharges. Great care must be taken to follow the following procedure to avoid damaging internal components in the control module:
|
|
|
•
|
Keep the control module in its packaging for as long as possible.
|
|
|
•
|
Never touch the pins of a control module with your hands or clothing.
|
|
|
•
|
Ground yourself by touching part of the car's body/engine. Unplug the connector from the car's control module.
|
|
|
•
|
Place the exchanged control module in its return packaging without touching the pins.
|
|
|
•
|
Ground yourself by touching part of the car's body/engine. Plug in the connector to the car's control module.
|
