P1766 HYUNDAI -

Question

Kindly explain the meaning of the code for my Hyundai Tucson. What do i need to replace in my car, and what is the implication if not replaced.

Thanks.
Akeem.

Answer 1

Hi there,

Without proper testing it's not possible to know what part needs replacement. This code is difficult to diagnose without the use of a high speed scan tool.

 

DTC Description 

This code related to communication line between ECM and TCCU is set when CAN signal from ECU can't received for more than 1 sec or ECU internal error occur.
If failure is detected TCCU prohibits the ITM control.

DTC Detecting Condition