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Check Mode Procedure [10/2015 - ]

HINT: 

Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect malfunctions that cannot be detected in normal mode.

NOTE:

All the stored DTCs and freeze frame data are cleared if: 1) the ECM assembly is changed from normal mode to check mode or vice versa; or 2) the power switch is turned from on (IG) to ACC or off while in check mode. Before changing modes, always check and note any DTCs and freeze frame data.

  1. CHECK MODE PROCEDURE 
    1. Check and ensure the following conditions:
      1. Auxiliary battery voltage is 11 V or higher.
      2. Throttle valve is fully closed.
      3. Shift lever is in P or N.
      4. A/C switch is off.
    2. Turn the power switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the power switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.

      Powertrain > Engine and ECT > Utility 

      Tester Display
      Check Mode
    7. Switch the ECM assembly from normal mode to check mode.
    8. Check that the MIL flashes as shown in the illustration.
      Fig 1: Identifying MIL Flash Pattern
      GTY374154Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Turn the power switch on (READY).
    10. Check that the MIL turns off.
    11. Simulate the conditions of the malfunction described by the customer.
    12. Check DTCs and freeze frame data using the Techstream.

      Powertrain > Engine and ECT > Trouble Codes 

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