After replacing the steering ECU you will need to INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT. For this procedure you need a compatible scan tool but I believe you may have another issue?
Why did you replace the gear and ECU? If it was for a hard steering then you may have misdiagnosis the problem? First thing to check is the 80 AMP EPS fuse to see if it blew out? If that is ok then check ALL YOUR FUSES RELATED TO ECU!
If the ECU module has no power you will not have steering. If your checks are ok then you would need to check all your wiring and you would need to verify your power and grounds are ok to the ECU.
If the task is overwhelming then I would recommend you take it in to a professional or your nearest dealership. Let us know what you find or if you need wiring diagrams for diagnosis.
Wednesday, May 24th, 2017 AT 10:16 PM