Component Location
General Description

CAN communication is a parallel circuit to interchange information among each units. CAN communication can share much information with units more faster and more efficiently by using specified language.

CAN-High line is twisted with CAN-Low line as a purpose in preventing from a noise.

ITM-ECU performs active control by sharing signals of engine RPM, APS, shift position, torque reduction.

DTC Description

This code related to communication line between ECU and TCCU is set when CAN signal from ECU can’t received for more than 1sec or ECU internal error occur.

If failure is detected TCCU prohibits the ITM control and cuts the current to control coil.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● TCU-ITM communication line or ECU side malfunction. (A/T only)

● CAN HIGH/LOW circuit open/short.

● Faulty TCU.

● Faulty TCCU.

Enable Conditions

● Message present 1.0 sec self clearing

Threshold Value

● Loss of TCU1 message for greater than 1 second, and a fault will be set. This fault applies to an automatic transmission only.

Diagnostic Time

● 1 sec

MIL on condition

● 0.5 Sec.

Fail Safe

● Trans gear set to first, engine torque set to zero, ECU will not send current to the clutch coil.

Schematic Diagram
Signal Waveform
Яндекс.Метрика