LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2019 >> Highlander XLE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Automatic Transmission (U760E) - Diagnostics - Introduction (Except Hybrid)) >> Automatic Transaxle System >> Check Mode Procedure [12/2013 - ] >> Check Mode Procedure [12/2013 - ]

Check Mode Procedure [12/2013 - ]

WARNING: This page is about a different variant/trim than selected.
  1. DESCRIPTION 
    1. Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic.
  2. CHECK MODE PROCEDURE 
    1. Make sure that the following conditions are met:
      1. Battery voltage is 11 V or more.
      2. Throttle valve fully closed.
      3. Shift lever in P or N.
      4. A/C off.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.

      Powertrain > Engine > Utility 

      Tester Display
      Check Mode
    7. Change the ECM to check mode. Make sure the MIL flashes as shown in the illustration.
      Fig 1: MIL Flashing Pattern
      GTY369639Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      All DTCs and freeze frame data will be cleared if: 1) the Techstream is used to change the ECM from normal mode to check mode or vice versa; or 2) during check mode, the ignition switch is turned from ON to ACC or off.

      Before entering check mode, make notes of the DTCs and freeze frame data.

    8. Start the engine. The MIL should turn off after the engine starts.
    9. Perform Monitor Drive Pattern for the ECT test.

      Refer to MONITOR DRIVE PATTERN [12/2013 - ] 

      (Or, simulate the conditions of the malfunction described by the customer.)

    10. After simulating the malfunction conditions, use the Techstream to check the DTC and freeze frame data.