General Information

Component Location





General Description

ITCC (Intelligent Torque Control Coupling) 4WD:
Though CAN communication, ECM and TCM hold engine RPM, APS, step of transmission, decreasing of torque in common and perform the active control.ITCC system has 4WD-LOCK function that can make driving force to 50:50 by compulsion according to driver's intention.

DTC Description

This DTC is set when inappropriate 4WD-ECM is detected (EEPROM checksum). If failure is detected "4WD-ECM" prohibits the "ITCC" control and vehicle is controlled with 2WD by intercepting EMC current.

DTC Detecting Condition





Diagnostic Circuit





Signal Waveform




FIG. 1) CAN Signal : high & low