POWER STEERING SYSTEM (for 2GR) CALIBRATION

  1. ASSIST MAP WRITING

    1. Turn the engine switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the Techstream on.

    5. Enter the following menus: Chassis / EMPS / Utility / Signal Check.

      Tech Tips

      • Follow the instructions on the Techstream to perform Signal Check.

      • With DTC C1581 output, performing Signal Check will cause the power steering ECU assembly to enter Test Mode and the assist map will be written automatically.

    6. Wait for at least 5 seconds.

    7. Check for DTCs Click here.

      Tech Tips

      After writing the assist map, if DTC C1581 is output, perform the troubleshooting procedure for DTC C1581 Click here.