DTC U0100: Lost Communication with ECM / PCM "A" [12/2012 - ]: Description

WARNING: This page is about a different variant/trim than selected.

The engine control unit and the transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control unit with the Controller Area Network (CAN).

If there is a problem in this intercommunication, the ECM stores a DTC.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
U0100	Lost Communication with ECM / PCM "A"	All conditions are met for 1.25 sec. (1-trip detection logic): Ignition switch is ON Battery voltage is 10.5 V or higher No intercommunication between engine control unit and transmission control unit	ECM	Comes on	DTC stored