(Hybrid) Unable To Perform Power Steering Calibration DTC C056E - keywords learn torque sensor pscm hp2 2mode

This PI was superceded to add 2009 model year. Please discard PIT4672.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Unable To Perform Power Steering Calibration and DTC C056E set in the PSCM (Power Steering Control Module)

Currently the tech 2 has a software anomaly with the power steering calibration procedure. When you start the procedure, the tech 2 will have you rotate the steering wheel 90 degrees to the right and then another 90 degrees to the left before centering the steering wheel. After you perform this step and hit the continue button at the bottom of the screen, you will experience a no communication screen as seen in the photo below.

Currently engineering is working on new software for the Tech 2 to resolve this concern and this PI will be updated when the software is released.

Please follow the temporary work around to perform the power steering calibration.

1) As soon as you reach the screen that advises you to rotate the steering wheel left and then right 90 degrees, (See Photo Below), you will need to immediately move the steering wheel. There is only a 2 second window to start the test or the Tech 2 will time out and display a " No communications " screen when you hit the continue button. If you wait longer than 2 seconds (example: like the 10 seconds it would take to read the instruction screen) the test will Time out. Once you make it past this screen, the rest of the test can be completed successfully.

Addition Information:

The last screen will display the Manufacture Enable Counter reset screen. This should only be needed if the current counter displayed on the screen reads something other than Zero.

Also, when performing the Power Steering Calibration, it is normal for the Drivers Information Center (DIC) to read "Service Power Steering System"

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.