Put the car on a two-post lift
Remove the hydroblock assembly
Remove the ECU mounting bolts on the pressure control unit and remove the ECU (fig. 2).
Do not clean the pressure control unit.
Be sure to replace the ECU mounting bolts.
Install the computer by holding the edges.
Do not apply pressure to the ECU during installation, it should snap into place without any effort.
The hydraulic pump must be firmly pressed against the pressure control unit.
When installing a new ECU, be sure to secure the male connector located between the pressure control unit and the ECU.
Tighten the computer mounting bolts on the pressure control unit (fig. 3).
Tighten the computer mounting bolts to the required torque of 3 Nm using tool (Mot1608).
Install the hydroblock assembly.
Configure the speed measurement index using the diagnostic tool.
Clear the fault codes stored by the ECU.
Perform a road test to confirm that the problem has been corrected.