Active Torque Control 4Wd System Test Mode Procedure

Drive Line. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Differential. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. DESCRIPTION

  1. ACTIVATE TEST MODE

  1. CONFIRM MODE CHANGE

Active Torque Control 4Wd System -- Test Mode Procedure



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.

Control Status
4WD Control Status
During test mode
  1. Different tire diameter malfunction judgment (detection that tire diameter of 4 wheels are not same) is not performed.
  1. Other than above item, normal control is performed.
- 4WD lock switch OFF (4WD auto mode status)
- 4WD lock switch ON (4WD lock mode status)

ACTIVATE TEST MODE
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

      1. Connect the intelligent tester to the DLC3 connector and turn the ignition switch on (IG). Using the test mode activation function (mode 10), activate test mode.

    2. Test mode activation by shorting TS terminal

      1. With the ignition switch off, short-circuit the TS and CG terminals of the DLC3 connector. Then turn the ignition switch on (IG) to activate test mode.
        NOTICE:
        When the ignition switch is turned from off to on (IG), the 4WD indicator light will illuminate for 4 seconds. Then it will turn off.
        4WD Lock Mode indicator
        4WD Lock Switch OFF
        		Illuminates for 4 seconds, then turns off
        4WD Lock Switch ON
        		Remains illuminated
        HINT:
        When the ignition switch is on (IG) and the 4WD lock mode switch is turned from off to on (IG), 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.


  3. Check if the 4WD indicator light has changed to the test mode display.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Differential.Active Torque Control 4Wd System.Active Torque Control 4Wd System Test Mode Procedure

  4. Start the engine.


CONFIRM MODE CHANGE
HINT:
Operate the 4WD lock switch, and check that the 4WD control mode changes.

4WD Lock switch Status
4WD Lock Mode Indicator Status
4WD Control Status
OFF
Turns off
4WD auto mode
ON
Illuminates
4WD lock mode
Switch changed from OFF to ON
Blinks twice, then illuminates
At moment of illumination, changes to 4WD lock mode