Test Mode Procedure

HINT:

When using a chassis dynamometer, brake tester, etc. to perform a vehicle test, activate test mode to avoid a "different tire diameter installed" incorrect judgment. Test mode does not have a 4WD parameter. Test mode is activated because it will prohibit a different tire diameter judgment.

HINT:

Activate test mode before using a chassis dynamometer, brake tester, etc. to perform a vehicle test.

1. Check that the ignition switch is OFF.
2. Use either of the following methods to change the 4WD ECU to test mode.
   1. Test mode activation through intelligent tester (with CAM VIM).
      • Connect the intelligent tester (with CAM VIM) to the DLC3 connector and turn the ignition switch ON. Using the test mode activation function (mode 10), activate test mode.
   2. Test mode activation by shorting TS terminal
      • With the ignition switch OFF, short-circuit the TS and CG terminals of the DLC3 connector. Then turn the ignition switch ON to activate test mode.
        NOTE: When the ignition switch is turned from OFF to ON, the 4WD indicator light will illuminate for 4 seconds. Then it will turn off.

        4WD Lock Mode indicator

        TEST MODE PROCEDURE
        
        

        4WD Lock Switch OFF	Illuminates for 4 seconds, then turns OFF
        4WD Lock Switch ON	Remains illuminated

        HINT:

        When the ignition switch is ON and the 4WD lock switch is turned from OFF to ON, the 4WD lock mode indicator blinks twice and then illuminates.

        If the indicator does not illuminate, check the bulb for burnout. Also, inspect the wire harness between the 4WD ECU and combination meter.

        NOTE: If a part of the 4WD system has a defect, the 4WD indicator light will illuminate.
3. Check if the 4WD indicator light has changed to the test mode display.
4. Start the engine.

HINT:

Operate the 4WD lock switch, and check that the 4WD control mode changes.

Fig 1: Locating 4WD Indicator Light

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