Test Mode Procedure

MF1A TRANSFER / 4WD / AWD: ACTIVE TORQUE CONTROL 4WD SYSTEM: TEST MODE PROCEDURE

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 the Techstream.

- Connect the Techstream to the DLC3 connector and turn the ignition switch to 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 to ON to activate test mode.
NOTE: When the ignition switch is turned from OFF to ON, the 4WD warning light will illuminate for 4 seconds. Then it will turn off.
NOTE: If a part of the 4WD system has a defect, the 4WD warning light will illuminate.