Electronic engine control unit (Opel Insignia A)

Attention.

• Turn off the ignition when installing or removing control unit connectors, or when disconnecting or connecting power to control units to prevent internal damage to the electronic units.
• Damage to electronic control units may occur as a result of contact between the metal housing and the battery power line. Do not allow power from the battery to be supplied to the metal housing of the control unit when servicing it, using jumper cables, or when charging the battery.
• To prevent possible damage to the control unit from electrostatic discharge, do not touch the connector terminals or component soldering points on the printed circuit boards.
• Remove any dirt from the area around the control unit connectors before servicing. Check the control unit connector gaskets when diagnosing or replacing the control unit. Make sure the gasket is installed correctly. Gaskets prevent dirt from entering the control unit.
• The replaced control unit must be reprogrammed.

Note: It is necessary to record the remaining engine oil life. If the replaced control unit is not reprogrammed with the remaining engine oil life information, the engine oil life will default to 100%. However, the engine oil should be changed after 5,000 km from the last oil change.

1. Prepare the engine control unit for replacement by performing the necessary reset procedures using diagnostic equipment.

Note. If the electronic engine control unit is being replaced, the firmware of the unit must first be reset before being removed from the vehicle. Failure to comply with this requirement may result in the following consequences:

• Unable to check the electronic engine control unit for warranty purposes.
• It is impossible to use the electronic control unit on other vehicles.

Text copied from an internet website (opelbook.ru)




2. Using a diagnostic device, read information about the remaining resource of the engine oil. Record the obtained data.

3. Disconnect the negative battery terminal.

4. Disconnect the two connectors from the electronic control unit.



5. Unhook the control unit bracket (1) from the battery shelf.

6. Unscrew the four nuts.

Note: Tightening torque of engine ECU mounting nuts: 9 Nm.

7. Remove the electronic engine control unit (2) from the bracket (1).

8. Installation is performed in the reverse order of removal. After installing the electronic engine control unit, it is necessary to perform its reprogramming procedure.