The first code you have is for the torque angle sensor in the steering. It says that either the wiring from the sensor to the steering ECU has failed or has a bad connection or the sensor itself has failed.
The other two codes are simply telling that because of the steering sensor failure the settings for the steering control were lost. These will go away as soon as the sensor signal returns so the calibrations can be done.
The first thing will be to verify the wiring is okay, visually inspect the wiring to the steering gear to make sure it is connected and that none of the wiring is rubbed through or broken. If it appears okay then test each wire to be sure they are conducting.
The first set of images show the two connections for the power steering sensor to the power steering ECU. Connector 2 and connector 5. Test between the points indicated in the chart and verify those values. (Basic continuity)
If the wires test okay (I am betting they will) then the next step should be testing the sensor itself to make sure it is actually bad, as this will rule out the problem being in the steering ECU. To do that test you test between the pins on the sensor connector following the information in the second set of images.
Once complete you should know if it is a bad sensor or a bad steering control unit.
The sensor is built inside the steering gear, so to replace it the entire rack gets replaced. Then once the mechanical alignment is done you do the actual torque sensor alignment and all of those codes will be gone.
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Sunday, December 31st, 2017 AT 9:05 AM
