Test Mode Procedure

DIFFERENTIAL: ACTIVE TORQUE CONTROL 4WD SYSTEM: TEST MODE PROCEDURE

1. DESCRIPTION

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.





2. ACTIVATE TEST MODE

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

(a) Check that the ignition switch is off.

(b) Use either of the following methods to change the 4WD ECU to test mode.

(1) Test mode activation through Techstream.

* Connect the Techstream 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.

NOTICE:
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





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.

NOTICE:
If a part of the 4WD system has a defect, the 4WD indicator light will illuminate.

(c) Check if the 4WD indicator light has changed to the test mode display.





(d) Start the engine.

3. CONFIRM MODE CHANGE

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