This post is about how to marry ECM / ECU to Saab car with GM tech2 and TIS 2000.
Tools to use:
Recommend the best quality
TIS 2000 may be required
Recommend this version, which work with Saab
– To marry a used ECU to the car with a GM tech2, you do need the original ECU to copy files from…
– You also need to make sure the software on the used ecu is right for your engine…
You do not need to divorce any module. You just enter your VIN when you get to that screen on the Tech2.
Think about it this way, if the ECU was completely fried it could still be replaced with a new one. The old (any old module – not just ECU) needs to be removed via Tech 2 from the car that is getting a replacement module. The donor car does not matter at all. Then the replacement module gets added to the car via Tech 2 needing a replacement module. The module may need SPS programming to load the correct version of software based on Engine, Market and other options depending on the module.
These are the procedures (Saab 9-3 (9440) 4 2004 for example):
Procedures before dismantling control module:
The control module is sensitive to electrostatic discharges. In order to prevent damage to internal components in control modules, they must be changed very carefully in the following manner:
• Never touch the pins on a control module with your hands or clothes.
• Ground yourself by touching the car body/engine. Unplug the connector on the car’s control module.
• Ground yourself by touching the car body/engine. Plug-in the connector on the car’s control module.
When the control module is to be replaced
• Place the old control module in the return packaging without touching its pins.
• Keep the new control module in its packaging as long as possible.
Before removing a control module, Tech 2 must be used to separate the control module from the car. From the “All” menu, select the control module under “And/Remove”. Then select “Remove” and follow the instructions. The ignition key must be in the ON position. TIS 2000 may be required. Once the control module has been separated from the car, turned the ignition key to the OFF position. The control module can then be removed. Carry out the “Remove” action with Tech2 even if the control module cannot be contacted or is completely missing because data in other control modules must be changed.
The action involves the following:
Security codes will be reset, bus lists updated, data in other control modules updated and data that may have to be written into a new control module read and displayed.
Measures after changing the control module:
Connect Tech 2 and use TIS 2000 to check whether the control module needs to be
programmed. Access the menu “SPS”, select “Read control module data” and follow the
instructions. The intention is that the control module shall be loaded with the latest available
software and in addition adapted to the car model and market.
After SPS programming: Check that the clock is set correctly and that pinch protection is
working. If necessary, set the date and time and carry out Calibration of pinch protection.
When the control module is fitted and in some cases SPS programmed, Tech 2 must be used
to “marry” the control module to the car. Access the menu “All” and select control module
under “Add/Remove”. Then select “Add” and follow the instructions. The ignition key must be
in the ON position. TIS 2000 may need to be used.
This happens with regard to data:
Characteristics files are downloaded, security codes are loaded, bus lists are updated, data in
other control modules is updated and trouble codes are deleted from all control modules.
Trionic T8 control module replacement:
Trionic T8 control module (589)
Carry out actions before removing control module.
1. Ignition key in LOCK position.
2. Remove the upper engine cover.
Carefully press down the catches and carefully unplug the connectors from the control module one at a time so that the connection pins, etc. are not damaged.
4.Remove the control module.
- Fit the control module. Do not forget the ground cable.
Tightening torque 10 Nm (7 lbf ft)
Take care when plugging in the connector so as not to damage or press out the pins/sleeves in the connector. For further information regarding connectors, refer to Connectors, handling and inspection.
Plug in the connectors and check that they are locked.
- Fit the upper engine cover.
Carry out actions after replacement of control module.