Circuit Description

Two circuits (TRC+, TRC-) are used to send TRAC control information from the ABS ECU to the throttle valve motor driver. The THD circuit sends response information from the throttle valve motor driver to the ABS ECU. DTC is set when a signal is received by ABS ECU that sub-throttle actuator is being commanded during TRAC non-operation or a signal is received by ABS ECU that sub-throttle actuator is being driven during TRAC operation (but not currently being commanded). Possible cause is throttle valve motor driver.